{
  "update_time": "2026-05-31",
  "total_count": 1470,
  "words": [
    {
      "word": "ability",
      "pos": "n",
      "meaning": "能力",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "abroad",
      "pos": "adv",
      "meaning": "在国外",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "absent",
      "pos": "adj",
      "meaning": "缺席的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "absolutely",
      "pos": "adv",
      "meaning": "绝对地",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "accident",
      "pos": "n.",
      "meaning": "事故",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "accident",
      "pos": "n.",
      "meaning": "意外遭遇",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "accommodation",
      "pos": "n",
      "meaning": "住处",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "act",
      "pos": "n.",
      "meaning": "行动",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "action",
      "pos": "n.",
      "meaning": "行动",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "activity",
      "pos": "n.",
      "meaning": "活动",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "actor",
      "pos": "n.",
      "meaning": "男演员",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ad",
      "pos": "n.",
      "meaning": "广告",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "add",
      "pos": "v.",
      "meaning": "添加",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "address",
      "pos": "n.",
      "meaning": "演讲",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "adult",
      "pos": "adj.",
      "meaning": "成年的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "adult",
      "pos": "n.",
      "meaning": "成年人",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "advanced",
      "pos": "adj.",
      "meaning": "高级的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "adventure",
      "pos": "n.",
      "meaning": "冒险",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "advert",
      "pos": "n.",
      "meaning": "广告",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "advertisement",
      "pos": "n.",
      "meaning": "广告",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "advice",
      "pos": "n.",
      "meaning": "建议",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "aeroplane",
      "pos": "n.",
      "meaning": "飞机",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "afraid",
      "pos": "adj.",
      "meaning": "害怕的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "afterwards",
      "pos": "adv.",
      "meaning": "之后",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "against",
      "pos": "prep.",
      "meaning": "反对",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "aged",
      "pos": "a.",
      "meaning": "年老的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "agree",
      "pos": "v.",
      "meaning": "同意",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "aim",
      "pos": "n",
      "meaning": "目标",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "air",
      "pos": "v.",
      "meaning": "使…通风",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "airport",
      "pos": "n.",
      "meaning": "机场",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "alarm clock",
      "pos": "n.",
      "meaning": "闹钟",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "album",
      "pos": "n.",
      "meaning": "（收藏照片、邮票等）簿，册",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "album",
      "pos": "n.",
      "meaning": "唱片集",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "all kinds of",
      "pos": "phrase.",
      "meaning": "各种各样的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "all sorts of",
      "pos": "phrase.",
      "meaning": "各种各样的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "all the time",
      "pos": "phrase.",
      "meaning": "一直",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "allow",
      "pos": "v.",
      "meaning": "允许",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "almost",
      "pos": "adv.",
      "meaning": "几乎",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "alone",
      "pos": "adv.",
      "meaning": "独自地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "alone",
      "pos": "adj.",
      "meaning": "单独的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "along",
      "pos": "adv.",
      "meaning": "（与某人）一道",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "already",
      "pos": "adv.",
      "meaning": "已经",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "alright",
      "pos": "adv.",
      "meaning": "好的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "amazed",
      "pos": "adj.",
      "meaning": "惊讶的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "amazing",
      "pos": "adj.",
      "meaning": "令人惊叹的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ambulance",
      "pos": "n.",
      "meaning": "救护车",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "among",
      "pos": "prep.",
      "meaning": "在……之中",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "antique",
      "pos": "adj",
      "meaning": "古老的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "anybody",
      "pos": "pron.",
      "meaning": "任何人",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "anyone",
      "pos": "pron.",
      "meaning": "任何人",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "anything",
      "pos": "pron.",
      "meaning": "任何事物",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "anyway",
      "pos": "adv.",
      "meaning": "不管怎样",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "anywhere",
      "pos": "adv.",
      "meaning": "任何地方",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "apartment",
      "pos": "n.",
      "meaning": "公寓套房",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "apartment building",
      "pos": "n.",
      "meaning": "公寓楼",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "app",
      "pos": "n.",
      "meaning": "应用程序",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "appointment",
      "pos": "n.",
      "meaning": "预约",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "area",
      "pos": "n.",
      "meaning": "地区",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "around",
      "pos": "adv.",
      "meaning": "大约",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "arrive",
      "pos": "v.",
      "meaning": "到达",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "article",
      "pos": "n.",
      "meaning": "文章",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "artist",
      "pos": "n.",
      "meaning": "艺术家",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "assistant",
      "pos": "n.",
      "meaning": "助手",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "attack",
      "pos": "v",
      "meaning": "攻击",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "attractive",
      "pos": "adj.",
      "meaning": "有吸引力的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "available",
      "pos": "adj.",
      "meaning": "有空的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "available",
      "pos": "adj.",
      "meaning": "可获得的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "average",
      "pos": "n",
      "meaning": "平均数",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "away",
      "pos": "adv.",
      "meaning": "离开",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "awesome",
      "pos": "adj.",
      "meaning": "令人惊叹的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "awful",
      "pos": "adj.",
      "meaning": "糟糕的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "babysit",
      "pos": "v",
      "meaning": "临时照看婴儿",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "babysitter",
      "pos": "n",
      "meaning": "保姆",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "background",
      "pos": "n",
      "meaning": "背景",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "backpack",
      "pos": "n.",
      "meaning": "背包",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "backpacker",
      "pos": "n",
      "meaning": "背包客",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bake",
      "pos": "vi.",
      "meaning": "烘焙",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "band",
      "pos": "n.",
      "meaning": "圈，箍，带",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bank",
      "pos": "n.",
      "meaning": "银行",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bank",
      "pos": "n.",
      "meaning": "河岸",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "barbecue",
      "pos": "n",
      "meaning": "烧烤",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "baseball",
      "pos": "n.",
      "meaning": "棒球",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "basketball",
      "pos": "n.",
      "meaning": "篮球",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bath",
      "pos": "n.",
      "meaning": "洗澡",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bathing suit",
      "pos": "n.",
      "meaning": "泳衣",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bathtub",
      "pos": "n.",
      "meaning": "浴缸",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "battery",
      "pos": "n.",
      "meaning": "电池",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bear",
      "pos": "v.",
      "meaning": "忍受",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "beard",
      "pos": "n.",
      "meaning": "(下巴上的) 胡子",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "because",
      "pos": "conj.",
      "meaning": "因为",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "because of",
      "pos": "phrase.",
      "meaning": "因为",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "become",
      "pos": "v.",
      "meaning": "成为",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "beetle",
      "pos": "n",
      "meaning": "甲虫",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "before",
      "pos": "adv.",
      "meaning": "之前",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "beginner",
      "pos": "n.",
      "meaning": "初学者",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "beginning",
      "pos": "n.",
      "meaning": "开始",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "believe",
      "pos": "v.",
      "meaning": "相信",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "belong",
      "pos": "v.",
      "meaning": "属于",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "below",
      "pos": "prep.",
      "meaning": "在……下面",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "below",
      "pos": "adv.",
      "meaning": "在下面",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "belt",
      "pos": "n.",
      "meaning": "腰带",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "benefit",
      "pos": "n",
      "meaning": "益处",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "best",
      "pos": "n.",
      "meaning": "最佳的人（或事物）",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "between",
      "pos": "prep.",
      "meaning": "在……之间",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "beyond",
      "pos": "prep",
      "meaning": "超出",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bicycle",
      "pos": "n.",
      "meaning": "自行车",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bill",
      "pos": "n.",
      "meaning": "账单",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bill",
      "pos": "n.",
      "meaning": "（美）钞票",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bin",
      "pos": "n.",
      "meaning": "箱子",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "biology",
      "pos": "n.",
      "meaning": "生物学",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "birth",
      "pos": "n.",
      "meaning": "出生",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "biscuit",
      "pos": "n.",
      "meaning": "饼干",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bit",
      "pos": "n.",
      "meaning": "少许",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "blanket",
      "pos": "n.",
      "meaning": "毯子",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "block",
      "pos": "n．",
      "meaning": "块",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "block",
      "pos": "n．",
      "meaning": "街区",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "blog",
      "pos": "n.",
      "meaning": "博客",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "blond",
      "pos": "adj.",
      "meaning": "金发的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "blood",
      "pos": "n.",
      "meaning": "血",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "blouse",
      "pos": "n.",
      "meaning": "女衬衫",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "blue",
      "pos": "n.",
      "meaning": "蓝色",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "board",
      "pos": "v.",
      "meaning": "上 (船、火车、飞机等)",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "boat",
      "pos": "v.",
      "meaning": "划船",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "boil",
      "pos": "v.",
      "meaning": "沸腾",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "boiled",
      "pos": "adj.",
      "meaning": "煮沸的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bomb",
      "pos": "n",
      "meaning": "炸弹",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "book",
      "pos": "v.",
      "meaning": "预订",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bookcase",
      "pos": "n.",
      "meaning": "书架",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bookshelf",
      "pos": "n.",
      "meaning": "书架",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bookshop",
      "pos": "n.",
      "meaning": "书店",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bookstore",
      "pos": "n.",
      "meaning": "书店",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "boot",
      "pos": "n.",
      "meaning": "靴子",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bored",
      "pos": "adj.",
      "meaning": "无聊的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "boring",
      "pos": "adj.",
      "meaning": "无聊的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "born",
      "pos": "v.",
      "meaning": "出生",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "borrow",
      "pos": "v.",
      "meaning": "借",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "boss",
      "pos": "n.",
      "meaning": "老板",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bother",
      "pos": "v.",
      "meaning": "打扰",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bottle",
      "pos": "n.",
      "meaning": "瓶子",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bottom",
      "pos": "n.",
      "meaning": "底部",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bottom",
      "pos": "adj.",
      "meaning": "底部的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bowl",
      "pos": "v.",
      "meaning": "投球",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "boyfriend",
      "pos": "n.",
      "meaning": "男朋友",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bracelet",
      "pos": "n.",
      "meaning": "手镯",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "brain",
      "pos": "n.",
      "meaning": "大脑",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "brake",
      "pos": "n",
      "meaning": "刹车",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "brave",
      "pos": "adj.",
      "meaning": "勇敢的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "break",
      "pos": "v.",
      "meaning": "打破",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "break",
      "pos": "n.",
      "meaning": "休息",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "break down",
      "pos": "phrase.",
      "meaning": "（车辆或机器）出故障",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bridge",
      "pos": "n.",
      "meaning": "桥",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bright",
      "pos": "adv.",
      "meaning": "明亮地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bright",
      "pos": "adj.",
      "meaning": "明亮的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bring",
      "pos": "v.",
      "meaning": "带来",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "bring back",
      "pos": "phrase.",
      "meaning": "恢复",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "broken",
      "pos": "adj.",
      "meaning": "破损的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "brown",
      "pos": "n.",
      "meaning": "棕色",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "brush",
      "pos": "n.",
      "meaning": "刷子",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "brush",
      "pos": "v.",
      "meaning": "刷",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "build",
      "pos": "v.",
      "meaning": "建造",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "building",
      "pos": "n.",
      "meaning": "建筑物",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "business",
      "pos": "n.",
      "meaning": "生意",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "businessman",
      "pos": "n.",
      "meaning": "商人",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "businesswoman",
      "pos": "n.",
      "meaning": "女商人",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "busy",
      "pos": "adj.",
      "meaning": "忙碌的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "busy person",
      "pos": "n.",
      "meaning": "忙碌的人",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "butter",
      "pos": "n.",
      "meaning": "黄油",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "butterfly",
      "pos": "n.",
      "meaning": "蝴蝶",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "buy",
      "pos": "v.",
      "meaning": "购买",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "by accident",
      "pos": "phrase.",
      "meaning": "偶然地",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "by post",
      "pos": "prep phr",
      "meaning": "通过邮寄方式",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "by the way",
      "pos": "phrase.",
      "meaning": "顺便说一下",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cab",
      "pos": "n",
      "meaning": "出租车",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cabbage",
      "pos": "n",
      "meaning": "卷心菜",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cabin",
      "pos": "n",
      "meaning": "小屋",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cabinet",
      "pos": "n.",
      "meaning": "橱柜",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cable",
      "pos": "n",
      "meaning": "电缆",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cafe",
      "pos": "n.",
      "meaning": "咖啡馆",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cafe",
      "pos": "n",
      "meaning": "咖啡馆",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cafeteria",
      "pos": "n.",
      "meaning": "自助餐厅",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "calendar",
      "pos": "n.",
      "meaning": "日历",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "call",
      "pos": "n.",
      "meaning": "电话",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "call",
      "pos": "v.",
      "meaning": "打电话",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "camel",
      "pos": "n.",
      "meaning": "骆驼",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "camera",
      "pos": "n.",
      "meaning": "摄影机",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "camp",
      "pos": "n.",
      "meaning": "营地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "camp",
      "pos": "v.",
      "meaning": "宿营",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "camping",
      "pos": "n.",
      "meaning": "野营",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "campsite",
      "pos": "n.",
      "meaning": "营地",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "can",
      "pos": "n.",
      "meaning": "罐头",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "candy",
      "pos": "n.",
      "meaning": "糖果",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cap",
      "pos": "n.",
      "meaning": "帽子",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "capital",
      "pos": "n.",
      "meaning": "首都",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cardboard",
      "pos": "n",
      "meaning": "硬纸板",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "career",
      "pos": "n.",
      "meaning": "职业",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "careful",
      "pos": "adj.",
      "meaning": "小心的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "carefully",
      "pos": "adv.",
      "meaning": "仔细地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "carpet",
      "pos": "n.",
      "meaning": "地毯",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "carry",
      "pos": "v.",
      "meaning": "携带",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cartoon",
      "pos": "n.",
      "meaning": "卡通",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "case",
      "pos": "n.",
      "meaning": "情况",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cash",
      "pos": "n.",
      "meaning": "现金",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "castle",
      "pos": "n.",
      "meaning": "城堡",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "catch",
      "pos": "v.",
      "meaning": "抓住",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "CD player",
      "pos": "abbr.",
      "meaning": "激光唱机",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ceiling",
      "pos": "n.",
      "meaning": "天花板",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "celebrate",
      "pos": "vi.&vt.",
      "meaning": "庆祝",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "celebrity",
      "pos": "n.",
      "meaning": "名人",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cell phone",
      "pos": "n.",
      "meaning": "手机",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cent",
      "pos": "n.",
      "meaning": "分",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "centimetre",
      "pos": "n.",
      "meaning": "厘米",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "centre",
      "pos": "n.",
      "meaning": "中心",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "century",
      "pos": "n.",
      "meaning": "世纪",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cereal",
      "pos": "n.",
      "meaning": "麦片",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "certainly",
      "pos": "adv.",
      "meaning": "当然",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "chain",
      "pos": "n.",
      "meaning": "链条",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "chain",
      "pos": "n.",
      "meaning": "连锁店",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "challenge",
      "pos": "n",
      "meaning": "挑战",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "change",
      "pos": "n.",
      "meaning": "零钱",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "change",
      "pos": "v.",
      "meaning": "兑换(钱)",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "channel",
      "pos": "n.",
      "meaning": "频道",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "character",
      "pos": "n.",
      "meaning": "(书、剧本、电影等中的)人物, 角色",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "charge",
      "pos": "v",
      "meaning": "充电",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "chat",
      "pos": "v.",
      "meaning": "聊天",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "chatroom",
      "pos": "n.",
      "meaning": "聊天室",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cheap",
      "pos": "adj.",
      "meaning": "便宜的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "check",
      "pos": "n",
      "meaning": "检查",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cheek",
      "pos": "n.",
      "meaning": "脸颊",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "chef",
      "pos": "n.",
      "meaning": "厨师",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "chemist",
      "pos": "n.",
      "meaning": "化学家",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "chemistry",
      "pos": "n.",
      "meaning": "化学",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cheque",
      "pos": "n.",
      "meaning": "支票",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "chess",
      "pos": "n.",
      "meaning": "国际象棋",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "chilli",
      "pos": "n.",
      "meaning": "辣椒",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "choose",
      "pos": "v.",
      "meaning": "选择",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cinema",
      "pos": "n.",
      "meaning": "电影院",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "circle",
      "pos": "n.",
      "meaning": "圆",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "circus",
      "pos": "n.",
      "meaning": "马戏团",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "class",
      "pos": "n.",
      "meaning": "（一节）课",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "classical",
      "pos": "adj.",
      "meaning": "古典的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "classmate",
      "pos": "n.",
      "meaning": "同学",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "classroom",
      "pos": "n.",
      "meaning": "教室",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cleaner",
      "pos": "n.",
      "meaning": "清洁工",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "clear",
      "pos": "adj.",
      "meaning": "不挨......太近的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "clear",
      "pos": "v.",
      "meaning": "清除",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "clearly",
      "pos": "adv.",
      "meaning": "清楚地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "clever",
      "pos": "adj.",
      "meaning": "聪明的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "click",
      "pos": "v.",
      "meaning": "点击",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "climb",
      "pos": "v.",
      "meaning": "攀登",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "climbing",
      "pos": "n.",
      "meaning": "攀登",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "close",
      "pos": "adj.",
      "meaning": "近的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "close",
      "pos": "adv.",
      "meaning": "接近地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "close to",
      "pos": "phrase.",
      "meaning": "靠近",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "closed",
      "pos": "adj.",
      "meaning": "关闭的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "closet",
      "pos": "n.",
      "meaning": "衣柜",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "clothes",
      "pos": "n.",
      "meaning": "衣服",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "clown",
      "pos": "n.",
      "meaning": "小丑",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "club",
      "pos": "n.",
      "meaning": "俱乐部",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "coach",
      "pos": "n.",
      "meaning": "教练",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "coast",
      "pos": "n.",
      "meaning": "海岸",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "coffee",
      "pos": "n.",
      "meaning": "咖啡",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cola",
      "pos": "n.",
      "meaning": "可乐",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "colleague",
      "pos": "n.",
      "meaning": "同事",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "collect",
      "pos": "v.",
      "meaning": "收集",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "college",
      "pos": "n.",
      "meaning": "大学",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "comb",
      "pos": "n.",
      "meaning": "梳子",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "come back",
      "pos": "phrase.",
      "meaning": "重返",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "comedy",
      "pos": "n.",
      "meaning": "喜剧",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "comfortable",
      "pos": "adj.",
      "meaning": "舒适的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "comment",
      "pos": "n",
      "meaning": "评论",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "company",
      "pos": "n.",
      "meaning": "公司",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "competition",
      "pos": "n.",
      "meaning": "比赛",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "complete",
      "pos": "v.",
      "meaning": "完成",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "complete",
      "pos": "adj.",
      "meaning": "完整的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "concert",
      "pos": "n.",
      "meaning": "音乐会",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "congratulations",
      "pos": "n.",
      "meaning": "祝贺",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "contact",
      "pos": "n.",
      "meaning": "联系",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "contact",
      "pos": "v.",
      "meaning": "联系",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "continue",
      "pos": "v.",
      "meaning": "继续",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "control",
      "pos": "n",
      "meaning": "控制",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "conversation",
      "pos": "n.",
      "meaning": "谈话",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cooker",
      "pos": "n.",
      "meaning": "炊具",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cookie",
      "pos": "n.",
      "meaning": "曲奇饼干",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cooking",
      "pos": "v.",
      "meaning": "烹饪",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cool",
      "pos": "adj.",
      "meaning": "凉爽的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "copy",
      "pos": "n.",
      "meaning": "副本",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "copy",
      "pos": "v.",
      "meaning": "复制",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "corner",
      "pos": "v.",
      "meaning": "将……逼入绝境",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cost",
      "pos": "v.",
      "meaning": "花费",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cost",
      "pos": "n.",
      "meaning": "费用",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "costume",
      "pos": "n.",
      "meaning": "服装",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "could",
      "pos": "v.aux.",
      "meaning": "能",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "course",
      "pos": "n.",
      "meaning": "课程",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "court",
      "pos": "n",
      "meaning": "法院；法庭",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cover",
      "pos": "v.",
      "meaning": "覆盖",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cover",
      "pos": "n.",
      "meaning": "封面",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "crash",
      "pos": "v",
      "meaning": "碰撞",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "crazy",
      "pos": "adj.",
      "meaning": "疯狂的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cream",
      "pos": "n.",
      "meaning": "奶油",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "creature",
      "pos": "n",
      "meaning": "生物",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "credit card",
      "pos": "n.",
      "meaning": "信用卡",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cricket",
      "pos": "n.",
      "meaning": "蟋蟀",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cricket",
      "pos": "n.",
      "meaning": "板球",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "crocodile",
      "pos": "n",
      "meaning": "鳄鱼",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "crossing",
      "pos": "n.",
      "meaning": "十字路口",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "crowd",
      "pos": "n.",
      "meaning": "人群",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "crowded",
      "pos": "adj.",
      "meaning": "拥挤的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cry",
      "pos": "n.",
      "meaning": "哭声",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cupboard",
      "pos": "n.",
      "meaning": "橱柜",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cure",
      "pos": "n",
      "meaning": "治愈方法",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "curry",
      "pos": "n.",
      "meaning": "咖喱",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "curtain",
      "pos": "n.",
      "meaning": "窗帘",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "customer",
      "pos": "n.",
      "meaning": "顾客",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cut",
      "pos": "n.",
      "meaning": "切口",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cycle",
      "pos": "v.",
      "meaning": "骑自行车",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cycle",
      "pos": "n.",
      "meaning": "周期",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "cycling",
      "pos": "n.",
      "meaning": "骑自行车运动",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "daily",
      "pos": "adv.",
      "meaning": "每天",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "daily",
      "pos": "adj.",
      "meaning": "每日的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "damage",
      "pos": "v",
      "meaning": "损坏",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "damage",
      "pos": "n",
      "meaning": "损坏",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "damaged",
      "pos": "adj",
      "meaning": "损坏的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dancer",
      "pos": "n.",
      "meaning": "舞者",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dancing",
      "pos": "n.",
      "meaning": "跳舞",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "danger",
      "pos": "n.",
      "meaning": "危险",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dangerous",
      "pos": "adj.",
      "meaning": "危险的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dark",
      "pos": "adj.",
      "meaning": "黑暗的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dark",
      "pos": "n.",
      "meaning": "黑暗",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "data",
      "pos": "n",
      "meaning": "数据",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "date",
      "pos": "n.",
      "meaning": "日期",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "date",
      "pos": "v",
      "meaning": "注明日期",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dead",
      "pos": "adj.",
      "meaning": "(因为缺电)不运行的;不转动的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "decide",
      "pos": "v.",
      "meaning": "决定",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "decrease",
      "pos": "n",
      "meaning": "减少",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "deep",
      "pos": "adj.",
      "meaning": "深的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "deep",
      "pos": "adv.",
      "meaning": "深深地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "defeat",
      "pos": "v",
      "meaning": "击败",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "degree",
      "pos": "n.",
      "meaning": "程度",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "delay",
      "pos": "n.",
      "meaning": "延误",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "delicious",
      "pos": "adj.",
      "meaning": "美味的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "deliver",
      "pos": "v.",
      "meaning": "递送",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "demand",
      "pos": "n",
      "meaning": "要求",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dentist",
      "pos": "n.",
      "meaning": "牙医",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "department",
      "pos": "n.",
      "meaning": "部门",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "department store",
      "pos": "n.",
      "meaning": "百货商店",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "describe",
      "pos": "v.",
      "meaning": "描述",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "desert",
      "pos": "n.",
      "meaning": "沙漠",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "desert",
      "pos": "v.",
      "meaning": "遗弃",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "design",
      "pos": "n.",
      "meaning": "设计",
      "level": "LV2（下）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "design",
      "pos": "v.",
      "meaning": "设计",
      "level": "LV2（下）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dessert",
      "pos": "n.",
      "meaning": "甜点",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "detailed",
      "pos": "adj.",
      "meaning": "详细的",
      "level": "LV2（下）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "diary",
      "pos": "n.",
      "meaning": "日记",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dictionary",
      "pos": "n.",
      "meaning": "词典",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET/Flyers",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "die",
      "pos": "v.",
      "meaning": "消失;灭亡",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "difference",
      "pos": "n.",
      "meaning": "差别",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "different",
      "pos": "adj.",
      "meaning": "不同的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "difficult",
      "pos": "adj.",
      "meaning": "困难的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "digital",
      "pos": "adj.",
      "meaning": "数字的",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "digital camera",
      "pos": "n.",
      "meaning": "数码相机",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dinosaur",
      "pos": "n.",
      "meaning": "恐龙",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "diploma",
      "pos": "n.",
      "meaning": "文凭",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "directions",
      "pos": "n.",
      "meaning": "方向",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dirty",
      "pos": "adj.",
      "meaning": "脏的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "disco",
      "pos": "n.",
      "meaning": "迪斯科",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "discount",
      "pos": "n.",
      "meaning": "折扣",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "discover",
      "pos": "v.",
      "meaning": "发现",
      "level": "LV2（下）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "discuss",
      "pos": "vt.",
      "meaning": "讨论",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dish",
      "pos": "n.",
      "meaning": "菜肴",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "display",
      "pos": "v",
      "meaning": "显示",
      "level": "LV2（下）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dive",
      "pos": "v.",
      "meaning": "潜水",
      "level": "LV2（下）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "diving",
      "pos": "n.",
      "meaning": "潜水",
      "level": "LV2（下）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "doctor",
      "pos": "n.",
      "meaning": "医生",
      "level": "LV2（上）",
      "cefr_level": "A1",
      "cambridge_level": "Movers",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "document",
      "pos": "n.",
      "meaning": "文件",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dollar",
      "pos": "n.",
      "meaning": "美元",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dot",
      "pos": "n.",
      "meaning": "点",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "double",
      "pos": "v.",
      "meaning": "使加倍",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "double room",
      "pos": "phrase.",
      "meaning": "双人间",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "doubt",
      "pos": "v",
      "meaning": "怀疑",
      "level": "LV2（下）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "download",
      "pos": "v.",
      "meaning": "下载",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "downstairs",
      "pos": "adj.",
      "meaning": "楼下的",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dozen",
      "pos": "det",
      "meaning": "十二",
      "level": "LV2（下）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "draw",
      "pos": "v.",
      "meaning": "抽签",
      "level": "LV2（下）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "draw",
      "pos": "n.",
      "meaning": "抽签",
      "level": "LV2（下）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "drawer",
      "pos": "n.",
      "meaning": "抽屉",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dream",
      "pos": "n.",
      "meaning": "梦想",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dream",
      "pos": "v.",
      "meaning": "梦想",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dress",
      "pos": "v.",
      "meaning": "穿衣服",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dressed",
      "pos": "adj.",
      "meaning": "穿着衣服的",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "drive",
      "pos": "v.",
      "meaning": "驾车送（人）",
      "level": "LV2（下）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "driving licence",
      "pos": "n.",
      "meaning": "驾驶执照",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "drop",
      "pos": "n.",
      "meaning": "滴",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "drugstore",
      "pos": "n.",
      "meaning": "药店",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "drum",
      "pos": "n.",
      "meaning": "鼓",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dry",
      "pos": "adj.",
      "meaning": "干燥的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "dry",
      "pos": "v.",
      "meaning": "变干",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "during",
      "pos": "prep.",
      "meaning": "在……期间",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "duty-free",
      "pos": "adj",
      "meaning": "免税的",
      "level": "LV2（下）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "DVD player",
      "pos": "n.",
      "meaning": "DVD播放机",
      "level": "LV2（下）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "each",
      "pos": "det.",
      "meaning": "每个",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "each",
      "pos": "pron.",
      "meaning": "每个",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "each other",
      "pos": "phrase.",
      "meaning": "彼此",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "eagle",
      "pos": "n",
      "meaning": "鹰",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "early",
      "pos": "adj.",
      "meaning": "早的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "earn",
      "pos": "v.",
      "meaning": "赚得",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "earring",
      "pos": "n.",
      "meaning": "耳环",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "easily",
      "pos": "adv.",
      "meaning": "容易地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "east",
      "pos": "n.",
      "meaning": "东方",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "east",
      "pos": "adj.",
      "meaning": "东部的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "east",
      "pos": "adv.",
      "meaning": "向东",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "eastern",
      "pos": "adj",
      "meaning": "东方的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "easy",
      "pos": "adj.",
      "meaning": "容易的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "easygoing",
      "pos": "adj",
      "meaning": "随和的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "economics",
      "pos": "n",
      "meaning": "经济学",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "edge",
      "pos": "n",
      "meaning": "边",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "education",
      "pos": "n",
      "meaning": "教育",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "electric",
      "pos": "adj.",
      "meaning": "电的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "electricity",
      "pos": "n.",
      "meaning": "电",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "elevator",
      "pos": "n.",
      "meaning": "电梯",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "empty",
      "pos": "adj.",
      "meaning": "空的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "empty",
      "pos": "v.",
      "meaning": "倒空",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "end",
      "pos": "v.",
      "meaning": "结束",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "engine",
      "pos": "n.",
      "meaning": "发动机",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "engineer",
      "pos": "n.",
      "meaning": "工程师",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "enough",
      "pos": "adj.",
      "meaning": "足够的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "enough",
      "pos": "adv.",
      "meaning": "足够地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "enter",
      "pos": "v.",
      "meaning": "进入",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "entrance",
      "pos": "n.",
      "meaning": "入口",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "envelope",
      "pos": "n.",
      "meaning": "信封",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "environment",
      "pos": "n.",
      "meaning": "环境",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "equipment",
      "pos": "n.",
      "meaning": "设备",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "especially",
      "pos": "adv.",
      "meaning": "尤其",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "euro",
      "pos": "n.",
      "meaning": "欧元",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "even",
      "pos": "adv.",
      "meaning": "甚至",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "event",
      "pos": "n.",
      "meaning": "事件",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ever",
      "pos": "adv.",
      "meaning": "曾经",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "everybody",
      "pos": "pron.",
      "meaning": "每个人",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "everywhere",
      "pos": "adv.",
      "meaning": "到处",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "exactly",
      "pos": "adv.",
      "meaning": "确切地；完全",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "exam",
      "pos": "abbr.",
      "meaning": "考试",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "examination",
      "pos": "n.",
      "meaning": "考试",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "example",
      "pos": "n.",
      "meaning": "例子",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "excellent",
      "pos": "adj.",
      "meaning": "优秀的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "except",
      "pos": "prep.",
      "meaning": "除了",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "except",
      "pos": "conj.",
      "meaning": "除了",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "exchange",
      "pos": "v",
      "meaning": "交换",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "excited",
      "pos": "adj.",
      "meaning": "兴奋的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "exciting",
      "pos": "adj.",
      "meaning": "令人兴奋的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "excuse",
      "pos": "n.",
      "meaning": "借口",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "exercise",
      "pos": "n.",
      "meaning": "锻炼",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "exercise",
      "pos": "v.",
      "meaning": "锻炼",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "exhibition",
      "pos": "n.",
      "meaning": "展览",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "expensive",
      "pos": "adj.",
      "meaning": "昂贵的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "experience",
      "pos": "n.",
      "meaning": "经验",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "experience",
      "pos": "v.",
      "meaning": "经历",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "experiment",
      "pos": "n.",
      "meaning": "实验",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "explain",
      "pos": "v.",
      "meaning": "解释",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "explore",
      "pos": "v.",
      "meaning": "探索",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "explorer",
      "pos": "n.",
      "meaning": "探险家",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "extinct",
      "pos": "adj.",
      "meaning": "不再存在的；已灭绝的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "extra",
      "pos": "adj.",
      "meaning": "额外的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "face",
      "pos": "vt.",
      "meaning": "面对",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "face to face",
      "pos": "adv",
      "meaning": "面对面地",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "face-to-face",
      "pos": "adj",
      "meaning": "面对面的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fact",
      "pos": "n.",
      "meaning": "事实",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "factory",
      "pos": "n.",
      "meaning": "工厂",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fail",
      "pos": "v.",
      "meaning": "失败",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fair",
      "pos": "adj.",
      "meaning": "（头发）金色的，浅褐色的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fall",
      "pos": "v.",
      "meaning": "落下",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fall",
      "pos": "n.",
      "meaning": "倒塌;跌倒;掉落",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fall",
      "pos": "n.",
      "meaning": "秋天",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fall over",
      "pos": "phr v",
      "meaning": "摔倒；跌倒",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "famous",
      "pos": "adj.",
      "meaning": "著名的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fan",
      "pos": "n.",
      "meaning": "（足球、电影）迷",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fancy",
      "pos": "v",
      "meaning": "想要",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fantastic",
      "pos": "adj.",
      "meaning": "极好的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "far",
      "pos": "adv.",
      "meaning": "远",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "far",
      "pos": "adj.",
      "meaning": "远的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "farm",
      "pos": "v.",
      "meaning": "耕种",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fashion",
      "pos": "n.",
      "meaning": "时尚",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fast",
      "pos": "adv.",
      "meaning": "快速地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fast food",
      "pos": "phrase.",
      "meaning": "快餐",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fat",
      "pos": "n.",
      "meaning": "脂肪",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "favourite",
      "pos": "adj.",
      "meaning": "最喜欢的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fax",
      "pos": "n",
      "meaning": "传真机",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "feel",
      "pos": "v.",
      "meaning": "感觉",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "feelings",
      "pos": "n.",
      "meaning": "情感",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "female",
      "pos": "adj",
      "meaning": "女性的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "festival",
      "pos": "n.",
      "meaning": "节日",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "few",
      "pos": "adj.",
      "meaning": "少数的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "few",
      "pos": "pron.",
      "meaning": "少数几个",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "field",
      "pos": "n.",
      "meaning": "领域",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fight",
      "pos": "v",
      "meaning": "战斗",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "file",
      "pos": "n.",
      "meaning": "文件",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fill",
      "pos": "v.",
      "meaning": "填充",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fill in",
      "pos": "phrase.",
      "meaning": "填写",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "film",
      "pos": "n.",
      "meaning": "电影",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "final",
      "pos": "adj.",
      "meaning": "最后的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "final",
      "pos": "n.",
      "meaning": "决赛",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "finally",
      "pos": "adv.",
      "meaning": "最终",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "find",
      "pos": "v.",
      "meaning": "感到",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "find out",
      "pos": "phrase.",
      "meaning": "查明",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fine",
      "pos": "adj.",
      "meaning": "晴朗的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "finger",
      "pos": "n.",
      "meaning": "手指",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "finish",
      "pos": "v.",
      "meaning": "完成",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "finish",
      "pos": "n.",
      "meaning": "结束",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fire",
      "pos": "n.",
      "meaning": "火",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "first",
      "pos": "adj.",
      "meaning": "第一的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "first name",
      "pos": "n.",
      "meaning": "名字",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "first of all",
      "pos": "phrase.",
      "meaning": "首先",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fish",
      "pos": "n.",
      "meaning": "鱼",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fit",
      "pos": "adj.",
      "meaning": "健康的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fit",
      "pos": "v.",
      "meaning": "适合",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fix",
      "pos": "v.",
      "meaning": "安装",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "flat",
      "pos": "adj.",
      "meaning": "平坦的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "flight",
      "pos": "n.",
      "meaning": "航班",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "flood",
      "pos": "n",
      "meaning": "洪水",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "floor",
      "pos": "n.",
      "meaning": "地板",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fly",
      "pos": "v.",
      "meaning": "放（风筝、飞机模型等）",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fly",
      "pos": "v.",
      "meaning": "飞",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fog",
      "pos": "n.",
      "meaning": "雾",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "foggy",
      "pos": "adj.",
      "meaning": "有雾的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "folder",
      "pos": "n.",
      "meaning": "文件夹",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "folk",
      "pos": "n",
      "meaning": "人们",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "follow",
      "pos": "v.",
      "meaning": "跟随",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "follow",
      "pos": "v.",
      "meaning": "关注（社交媒体）",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "foot",
      "pos": "n.",
      "meaning": "英尺",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "football",
      "pos": "n.",
      "meaning": "橄榄球",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "footballer",
      "pos": "n.",
      "meaning": "足球运动员",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "for",
      "pos": "prep.",
      "meaning": "为了",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "foreign",
      "pos": "adj.",
      "meaning": "外国的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "forest",
      "pos": "n.",
      "meaning": "森林",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "forget",
      "pos": "v.",
      "meaning": "忘记",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fork",
      "pos": "n.",
      "meaning": "餐叉",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "form",
      "pos": "n.",
      "meaning": "表格",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "form",
      "pos": "v.",
      "meaning": "组成；产生",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "free",
      "pos": "adj.",
      "meaning": "免费的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "French fries",
      "pos": "n.",
      "meaning": "炸薯条",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fresh",
      "pos": "adj.",
      "meaning": "新鲜的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fried",
      "pos": "adj.",
      "meaning": "油炸的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "friendly",
      "pos": "adj.",
      "meaning": "友好的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "frightened",
      "pos": "adj.",
      "meaning": "害怕的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "frog",
      "pos": "n.",
      "meaning": "青蛙",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "from",
      "pos": "prep.",
      "meaning": "(表示开始的时间)从…开始",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "front",
      "pos": "n.",
      "meaning": "前面",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "front",
      "pos": "adj.",
      "meaning": "前面的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fruit",
      "pos": "n.",
      "meaning": "果实；结果",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "full",
      "pos": "adj.",
      "meaning": "忙的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "full",
      "pos": "adj.",
      "meaning": "满的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "fur",
      "pos": "n.",
      "meaning": "毛皮",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "furniture",
      "pos": "n.",
      "meaning": "家具",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "further",
      "pos": "adv.",
      "meaning": "进一步",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "future",
      "pos": "n.",
      "meaning": "未来",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "gallery",
      "pos": "n.",
      "meaning": "画廊",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "game",
      "pos": "n.",
      "meaning": "比赛; 竞技",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "gap",
      "pos": "n",
      "meaning": "缺口",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "garage",
      "pos": "n.",
      "meaning": "车库",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "garden",
      "pos": "v.",
      "meaning": "从事园艺活动",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "garlic",
      "pos": "n.",
      "meaning": "大蒜",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "gas",
      "pos": "n.",
      "meaning": "天然气",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "gas station",
      "pos": "n.",
      "meaning": "加油站",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "gate",
      "pos": "n.",
      "meaning": "大门",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "general",
      "pos": "adj",
      "meaning": "一般的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "generally",
      "pos": "adv",
      "meaning": "通常",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "generation",
      "pos": "n",
      "meaning": "一代",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "geography",
      "pos": "n.",
      "meaning": "地理",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "get back",
      "pos": "phrase.",
      "meaning": "回来",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "get fit",
      "pos": "phrase.",
      "meaning": "健身",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "get married",
      "pos": "phrase.",
      "meaning": "结婚",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "girlfriend",
      "pos": "n.",
      "meaning": "女朋友",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "give back",
      "pos": "phrase.",
      "meaning": "归还",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "give somebody a call/ring",
      "pos": "phrase.",
      "meaning": "给某人打电话",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "glad",
      "pos": "adj.",
      "meaning": "高兴的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "glass",
      "pos": "n.",
      "meaning": "玻璃",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "glove",
      "pos": "n.",
      "meaning": "（分手指的）手套",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "go out",
      "pos": "phrase.",
      "meaning": "出去",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "goal",
      "pos": "n.",
      "meaning": "目标",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "goat",
      "pos": "n.",
      "meaning": "山羊",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "gold",
      "pos": "n.",
      "meaning": "黄金",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "gold",
      "pos": "adj.",
      "meaning": "金色的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "golden",
      "pos": "adj.",
      "meaning": "金色的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "golf",
      "pos": "n.",
      "meaning": "高尔夫球",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "good-looking",
      "pos": "adj.",
      "meaning": "英俊的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "grade",
      "pos": "n.",
      "meaning": "年级",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "graduate",
      "pos": "v",
      "meaning": "毕业",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "gram",
      "pos": "n.",
      "meaning": "克",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "grandchild",
      "pos": "n.",
      "meaning": "孙子；孙女；外孙；外孙女",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "grass",
      "pos": "n.",
      "meaning": "草地",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "great",
      "pos": "adj.",
      "meaning": "伟大的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "grey",
      "pos": "adj.",
      "meaning": "（天空）阴沉的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "grill",
      "pos": "n",
      "meaning": "烤架",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "grilled",
      "pos": "a.",
      "meaning": "烤的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "grocery store",
      "pos": "n.",
      "meaning": "杂货店",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "group",
      "pos": "n.",
      "meaning": "组",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "grow",
      "pos": "v",
      "meaning": "生长",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "grow up",
      "pos": "phrase.",
      "meaning": "长大",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "guess",
      "pos": "v.",
      "meaning": "猜测",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "guess",
      "pos": "n.",
      "meaning": "猜测",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "guest",
      "pos": "n.",
      "meaning": "客人",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "guest-house",
      "pos": "n.",
      "meaning": "招待所",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "guide",
      "pos": "n.",
      "meaning": "指南",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "guide",
      "pos": "v.",
      "meaning": "指导",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "guidebook",
      "pos": "n.",
      "meaning": "旅行指南",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "guy",
      "pos": "n.",
      "meaning": "家伙",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "gym",
      "pos": "n.",
      "meaning": "体育馆",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "habit",
      "pos": "n",
      "meaning": "习惯",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "haircut",
      "pos": "n",
      "meaning": "理发",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hairdresser",
      "pos": "n",
      "meaning": "理发师",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hairdryer",
      "pos": "n",
      "meaning": "吹风机",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "half",
      "pos": "n.",
      "meaning": "（时间）半小时",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "half-price",
      "pos": "n.",
      "meaning": "半价",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hall",
      "pos": "n.",
      "meaning": "大厅",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hand",
      "pos": "vt.",
      "meaning": "传递，交递",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "happen",
      "pos": "v.",
      "meaning": "发生",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "harbour",
      "pos": "n.",
      "meaning": "港口",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hard",
      "pos": "adv.",
      "meaning": "努力地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hard",
      "pos": "adj.",
      "meaning": "困难的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hate",
      "pos": "v.",
      "meaning": "讨厌",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "head",
      "pos": "v.",
      "meaning": "带领",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "headache",
      "pos": "n.",
      "meaning": "头痛",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "headphones",
      "pos": "n.",
      "meaning": "耳机",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "headteacher",
      "pos": "n.",
      "meaning": "校长",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "health",
      "pos": "n.",
      "meaning": "健康",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "healthy",
      "pos": "adj.",
      "meaning": "健康的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hear",
      "pos": "v.",
      "meaning": "听见",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "heart",
      "pos": "n.",
      "meaning": "心脏",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "heating",
      "pos": "n.",
      "meaning": "供暖",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "heavy",
      "pos": "adj.",
      "meaning": "重的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "help",
      "pos": "int.",
      "meaning": "救命",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "helpful",
      "pos": "adj.",
      "meaning": "有帮助的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "high",
      "pos": "adj.",
      "meaning": "高的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "high",
      "pos": "adv.",
      "meaning": "高地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hip hop",
      "pos": "n.",
      "meaning": "嘻哈音乐",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hire",
      "pos": "n",
      "meaning": "被雇佣的人",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "history",
      "pos": "n.",
      "meaning": "历史",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hit",
      "pos": "n.",
      "meaning": "击打",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hobby",
      "pos": "n.",
      "meaning": "爱好",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hockey",
      "pos": "n.",
      "meaning": "曲棍球, 冰上曲棍球",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hold",
      "pos": "vi.",
      "meaning": "（打电话时）等待，不挂断",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "holiday",
      "pos": "n.",
      "meaning": "假期",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "honey",
      "pos": "n.",
      "meaning": "蜂蜜",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hoodie",
      "pos": "n",
      "meaning": "带兜帽的厚运动衫",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hope",
      "pos": "n.",
      "meaning": "希望",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hope",
      "pos": "v.",
      "meaning": "希望",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "horrible",
      "pos": "adj.",
      "meaning": "可怕的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "horror",
      "pos": "n.",
      "meaning": "恐怖",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hospital",
      "pos": "n.",
      "meaning": "医院",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hot",
      "pos": "adj.",
      "meaning": "热的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hotel",
      "pos": "n.",
      "meaning": "酒店",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hour",
      "pos": "n.",
      "meaning": "小时",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "house",
      "pos": "n.",
      "meaning": "房子",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "housewife",
      "pos": "n.",
      "meaning": "家庭主妇",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hug",
      "pos": "n",
      "meaning": "拥抱",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "huge",
      "pos": "adj.",
      "meaning": "巨大的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "human",
      "pos": "n",
      "meaning": "人",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hungry",
      "pos": "adj.",
      "meaning": "饥饿的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hurry",
      "pos": "n.",
      "meaning": "匆忙",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hurry",
      "pos": "v.",
      "meaning": "匆忙",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "hurt",
      "pos": "v.",
      "meaning": "伤害",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "husband",
      "pos": "n.",
      "meaning": "丈夫",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ice hockey",
      "pos": "n",
      "meaning": "冰球",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ice skates",
      "pos": "n",
      "meaning": "冰鞋",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ice skating",
      "pos": "n",
      "meaning": "滑冰",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ID/ID card",
      "pos": "abbr.",
      "meaning": "身份证",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "idea",
      "pos": "n.",
      "meaning": "想法",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "identification",
      "pos": "n.",
      "meaning": "识别",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "immediately",
      "pos": "adv.",
      "meaning": "立即",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "immediately",
      "pos": "conj.",
      "meaning": "一……就……",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "important",
      "pos": "adj.",
      "meaning": "重要的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "impossible",
      "pos": "adj.",
      "meaning": "不可能的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "improve",
      "pos": "v.",
      "meaning": "改进",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "in front of",
      "pos": "phrase.",
      "meaning": "在……前面",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "include",
      "pos": "v.",
      "meaning": "包含",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "including",
      "pos": "prep.",
      "meaning": "包括",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "indoor",
      "pos": "adj.",
      "meaning": "室内的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "indoors",
      "pos": "adv.",
      "meaning": "在室内",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "influence",
      "pos": "n",
      "meaning": "影响",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "information",
      "pos": "n.",
      "meaning": "信息",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ingredient",
      "pos": "n.",
      "meaning": "成分",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "insect",
      "pos": "n.",
      "meaning": "昆虫",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "inside",
      "pos": "adj.",
      "meaning": "内部的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "instead",
      "pos": "adv.",
      "meaning": "反而",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "instead of",
      "pos": "prep.",
      "meaning": "代替",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "instructions",
      "pos": "n.[pl.]",
      "meaning": "指示",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "instrument",
      "pos": "n.",
      "meaning": "仪器",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "interest",
      "pos": "n",
      "meaning": "兴趣",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "interested",
      "pos": "adj.",
      "meaning": "感兴趣的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "interesting",
      "pos": "adj.",
      "meaning": "有趣的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "international",
      "pos": "adj.",
      "meaning": "国际的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "internet",
      "pos": "n.",
      "meaning": "互联网",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "interview",
      "pos": "n",
      "meaning": "面试",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "invent",
      "pos": "v.",
      "meaning": "发明",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "invention",
      "pos": "n.",
      "meaning": "发明",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "invitation",
      "pos": "n.",
      "meaning": "邀请",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "invite",
      "pos": "v.",
      "meaning": "邀请",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "iron",
      "pos": "n",
      "meaning": "铁",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "island",
      "pos": "n.",
      "meaning": "岛",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "IT",
      "pos": "abbr.",
      "meaning": "信息技术",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "jacket",
      "pos": "n.",
      "meaning": "夹克衫",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "jail",
      "pos": "n",
      "meaning": "监狱",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "jam",
      "pos": "n.",
      "meaning": "果酱",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "jar",
      "pos": "n",
      "meaning": "罐子",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "jazz",
      "pos": "n.",
      "meaning": "爵士乐",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "jealous",
      "pos": "adj",
      "meaning": "嫉妒的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "jeans",
      "pos": "n.",
      "meaning": "牛仔裤",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "jet",
      "pos": "n",
      "meaning": "喷气式飞机",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "jewellery",
      "pos": "n.",
      "meaning": "珠宝",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "job",
      "pos": "n.",
      "meaning": "工作",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "join",
      "pos": "v.",
      "meaning": "加入",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "joke",
      "pos": "n",
      "meaning": "笑话",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "journalist",
      "pos": "n.",
      "meaning": "记者",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "journey",
      "pos": "n.",
      "meaning": "旅行",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "judge",
      "pos": "v",
      "meaning": "判断",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "jumper",
      "pos": "n.",
      "meaning": "(毛或棉的)针织套衫",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "just",
      "pos": "adv.",
      "meaning": "刚刚",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "keep",
      "pos": "v.",
      "meaning": "保持",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "key",
      "pos": "n.",
      "meaning": "钥匙",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "key",
      "pos": "adj.",
      "meaning": "关键的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "keyboard",
      "pos": "n.",
      "meaning": "键盘",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "kick",
      "pos": "v.",
      "meaning": "踢",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "kilogram",
      "pos": "n.",
      "meaning": "千克",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "kilometre",
      "pos": "n.",
      "meaning": "千米",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "kind",
      "pos": "adj.",
      "meaning": "友好的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "king",
      "pos": "n.",
      "meaning": "国王",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "kiss",
      "pos": "v.",
      "meaning": "亲吻",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "kiss",
      "pos": "n.",
      "meaning": "亲吻",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "kit",
      "pos": "n.",
      "meaning": "工具包",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "knife",
      "pos": "n.",
      "meaning": "刀",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "land",
      "pos": "v",
      "meaning": "着陆",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "language",
      "pos": "n.",
      "meaning": "语言",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "laptop",
      "pos": "n.",
      "meaning": "笔记本电脑",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "large",
      "pos": "adj.",
      "meaning": "大的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "last",
      "pos": "adj.",
      "meaning": "最后的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "late",
      "pos": "adj.",
      "meaning": "迟的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "later",
      "pos": "adv.",
      "meaning": "后来",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "laugh",
      "pos": "n.",
      "meaning": "笑",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "laugh",
      "pos": "v.",
      "meaning": "笑",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "lazy",
      "pos": "adj.",
      "meaning": "懒惰的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "least",
      "pos": "adj.",
      "meaning": "最少的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "least",
      "pos": "adv.",
      "meaning": "最少",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "least",
      "pos": "n.",
      "meaning": "最小量",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "leather",
      "pos": "adj.",
      "meaning": "皮革的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "leather",
      "pos": "n.",
      "meaning": "皮革",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "leave",
      "pos": "v",
      "meaning": "离开",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "leave",
      "pos": "n.",
      "meaning": "假期",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "left",
      "pos": "n.",
      "meaning": "左边",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "left-hand",
      "pos": "adj.",
      "meaning": "左手的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "lend",
      "pos": "v.",
      "meaning": "借给",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "length",
      "pos": "n.",
      "meaning": "长度",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "less",
      "pos": "adj.",
      "meaning": "更少的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "less",
      "pos": "adv.",
      "meaning": "较少地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "less",
      "pos": "n.",
      "meaning": "较少数量",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "lesson",
      "pos": "n.",
      "meaning": "经验教训",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "letter",
      "pos": "n.",
      "meaning": "信函",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "level",
      "pos": "n.",
      "meaning": "水平",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "licence",
      "pos": "n.",
      "meaning": "执照",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "lie",
      "pos": "v",
      "meaning": "躺",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "lie down",
      "pos": "phrase.",
      "meaning": "躺下",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "life",
      "pos": "n.",
      "meaning": "生命",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "lift",
      "pos": "v.",
      "meaning": "举起",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "light",
      "pos": "adj.",
      "meaning": "轻的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "limit",
      "pos": "n",
      "meaning": "限制",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "line",
      "pos": "n.",
      "meaning": "电话线路",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "link",
      "pos": "n.",
      "meaning": "链接",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "list",
      "pos": "v.",
      "meaning": "列出",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "list",
      "pos": "n.",
      "meaning": "清单",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "little",
      "pos": "adv.",
      "meaning": "少量地",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "live",
      "pos": "adv.",
      "meaning": "现场直播地",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "live",
      "pos": "adj",
      "meaning": "现场直播的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "lizard",
      "pos": "n",
      "meaning": "蜥蜴",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "load",
      "pos": "n",
      "meaning": "负载",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "local",
      "pos": "adj.",
      "meaning": "当地的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "lock",
      "pos": "v",
      "meaning": "锁",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "look after",
      "pos": "phrase.",
      "meaning": "照顾",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "look out",
      "pos": "phrase.",
      "meaning": "小心",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "lorry",
      "pos": "n.",
      "meaning": "卡车",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "lose",
      "pos": "v.",
      "meaning": "失去",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "lost",
      "pos": "adj.",
      "meaning": "迷路的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "lots",
      "pos": "n.",
      "meaning": "许多",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "loud",
      "pos": "adj.",
      "meaning": "大声的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "love",
      "pos": "n.",
      "meaning": "（写信结尾的热情问候语）爱你的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "lovely",
      "pos": "adj.",
      "meaning": "可爱的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "low",
      "pos": "adj.",
      "meaning": "低的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "luck",
      "pos": "n.",
      "meaning": "运气",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "luckily",
      "pos": "adv.",
      "meaning": "幸运地",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "lucky",
      "pos": "adj.",
      "meaning": "幸运的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "luggage",
      "pos": "n.",
      "meaning": "行李",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "lunchtime",
      "pos": "n.",
      "meaning": "午餐时间",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "machine",
      "pos": "n.",
      "meaning": "机器",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mad",
      "pos": "adj.",
      "meaning": "疯狂的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "magazine",
      "pos": "n.",
      "meaning": "杂志",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "magic",
      "pos": "n",
      "meaning": "魔法",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "magic",
      "pos": "adj",
      "meaning": "神奇的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mail",
      "pos": "v.",
      "meaning": "邮寄",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mail",
      "pos": "n.",
      "meaning": "邮件",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "main course",
      "pos": "n.",
      "meaning": "主菜",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "make sure",
      "pos": "phrase.",
      "meaning": "确保",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "make-up",
      "pos": "n.",
      "meaning": "化妆品",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "male",
      "pos": "adj",
      "meaning": "男性的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "manager",
      "pos": "n.",
      "meaning": "经理",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "many",
      "pos": "pron.",
      "meaning": "许多(人或物)",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mark",
      "pos": "n.",
      "meaning": "标记",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mark",
      "pos": "v.",
      "meaning": "标记",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "market",
      "pos": "n.",
      "meaning": "市场",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "married",
      "pos": "adj.",
      "meaning": "已婚的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "match",
      "pos": "v.",
      "meaning": "匹配",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "material",
      "pos": "n",
      "meaning": "材料",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mathematics",
      "pos": "n.",
      "meaning": "数学",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "maths",
      "pos": "abbr.",
      "meaning": "数学",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "matter",
      "pos": "n.",
      "meaning": "事情",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "matter",
      "pos": "v.",
      "meaning": "要紧，有关系",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "maximum",
      "pos": "n",
      "meaning": "最大值",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "meal",
      "pos": "n.",
      "meaning": "一餐",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mean",
      "pos": "adj.",
      "meaning": "吝啬的；小气的；不善良的；刻薄的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mechanic",
      "pos": "n.",
      "meaning": "机械师",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "medicine",
      "pos": "n.",
      "meaning": "药物",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "meet",
      "pos": "v.",
      "meaning": "遇见",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "meeting",
      "pos": "n.",
      "meaning": "会议",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "melon",
      "pos": "n.",
      "meaning": "瓜",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "member",
      "pos": "n.",
      "meaning": "成员",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "memory",
      "pos": "n.",
      "meaning": "记忆力",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "memory",
      "pos": "n.",
      "meaning": "回忆",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "message",
      "pos": "n.",
      "meaning": "消息",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "message",
      "pos": "v.",
      "meaning": "发送（信息、消息等）",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "metal",
      "pos": "n.",
      "meaning": "金属",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "metal",
      "pos": "adj.",
      "meaning": "金属的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "metre",
      "pos": "n.",
      "meaning": "米",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "microphone",
      "pos": "n",
      "meaning": "麦克风",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "midday",
      "pos": "n.",
      "meaning": "正午",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "middle",
      "pos": "n.",
      "meaning": "中间",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "middle",
      "pos": "adj.",
      "meaning": "中间的",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "midnight",
      "pos": "n.",
      "meaning": "午夜",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "might",
      "pos": "modal v.",
      "meaning": "可能",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mile",
      "pos": "n.",
      "meaning": "英里",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "million",
      "pos": "num.",
      "meaning": "百万",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mind",
      "pos": "v.",
      "meaning": "介意",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mind",
      "pos": "n.",
      "meaning": "头脑",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mine",
      "pos": "pron.",
      "meaning": "我的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mineral water",
      "pos": "n.",
      "meaning": "矿泉水",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "minimum",
      "pos": "n",
      "meaning": "最小值",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "minus",
      "pos": "prep.",
      "meaning": "减",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "minute",
      "pos": "n.",
      "meaning": "分钟",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mirror",
      "pos": "n.",
      "meaning": "镜子",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "missing",
      "pos": "adj.",
      "meaning": "失踪的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mistake",
      "pos": "n.",
      "meaning": "错误",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mistake",
      "pos": "v.",
      "meaning": "弄错",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mix",
      "pos": "n.",
      "meaning": "混合物",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mix",
      "pos": "v.",
      "meaning": "混合",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mobile",
      "pos": "adj.",
      "meaning": "活动的，可移动的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mobile phone",
      "pos": "n.",
      "meaning": "手机",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "model",
      "pos": "n.",
      "meaning": "榜样",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "modern",
      "pos": "adj.",
      "meaning": "现代的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "moment",
      "pos": "n.",
      "meaning": "时刻",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "money",
      "pos": "n.",
      "meaning": "钱",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "month",
      "pos": "n.",
      "meaning": "月",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "monthly",
      "pos": "adj.",
      "meaning": "每月的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "most",
      "pos": "adj.",
      "meaning": "最多的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "most",
      "pos": "n.",
      "meaning": "大多数",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "motorbike",
      "pos": "n.",
      "meaning": "摩托车",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "motorway",
      "pos": "n.",
      "meaning": "高速公路",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mountain",
      "pos": "n.",
      "meaning": "山",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "move",
      "pos": "v.",
      "meaning": "移动",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "movie",
      "pos": "n.",
      "meaning": "电影",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "movie star",
      "pos": "n.",
      "meaning": "电影明星",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "movie theater",
      "pos": "phrase.",
      "meaning": "电影院",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "MP3 player",
      "pos": "n.",
      "meaning": "MP3播放器",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mug",
      "pos": "n.",
      "meaning": "马克杯",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "museum",
      "pos": "n.",
      "meaning": "博物馆",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "mushroom",
      "pos": "n.",
      "meaning": "蘑菇",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "musical",
      "pos": "adj.",
      "meaning": "音乐的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "musician",
      "pos": "n.",
      "meaning": "音乐家",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "name",
      "pos": "v.",
      "meaning": "命名；给…取名",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "narrow",
      "pos": "adj",
      "meaning": "狭窄的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "national",
      "pos": "adj.",
      "meaning": "国家的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "nationality",
      "pos": "n.",
      "meaning": "国籍",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "natural",
      "pos": "adj.",
      "meaning": "自然的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "nature",
      "pos": "n.",
      "meaning": "自然",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "near",
      "pos": "adj.",
      "meaning": "近的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "nearby",
      "pos": "adj",
      "meaning": "附近的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "nearly",
      "pos": "adv.",
      "meaning": "几乎",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "necklace",
      "pos": "n.",
      "meaning": "项链",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "need",
      "pos": "n.",
      "meaning": "需要",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "neighbour",
      "pos": "n.",
      "meaning": "邻居",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "neither",
      "pos": "adv",
      "meaning": "也不",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "nervous",
      "pos": "adj.",
      "meaning": "紧张的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "nest",
      "pos": "n",
      "meaning": "鸟巢；鸟窝",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "news",
      "pos": "n.",
      "meaning": "新闻",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "newspaper",
      "pos": "n.",
      "meaning": "报纸",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "next",
      "pos": "adv.",
      "meaning": "下一个",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "next to",
      "pos": "phrase.",
      "meaning": "在……旁边",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "nice",
      "pos": "adj.",
      "meaning": "友好的，亲切的，讨人喜欢的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "niece",
      "pos": "n",
      "meaning": "侄女",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "no one",
      "pos": "n.",
      "meaning": "没有人",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "nobody",
      "pos": "pron.",
      "meaning": "没有人",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "nobody",
      "pos": "n.",
      "meaning": "无足轻重的人",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "noise",
      "pos": "n.",
      "meaning": "噪音",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "noisy",
      "pos": "adj.",
      "meaning": "吵闹的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "noon",
      "pos": "n.",
      "meaning": "中午",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "normal",
      "pos": "adj.",
      "meaning": "正常的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "north",
      "pos": "n.",
      "meaning": "北方",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "north",
      "pos": "adj.",
      "meaning": "北方的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "northeast",
      "pos": "n",
      "meaning": "东北部",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "northwest",
      "pos": "n",
      "meaning": "西北",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "note",
      "pos": "n.",
      "meaning": "笔记",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "note",
      "pos": "v.",
      "meaning": "注意到",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "notebook",
      "pos": "n.",
      "meaning": "笔记本",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "nothing",
      "pos": "pron.",
      "meaning": "没有什么",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "notice",
      "pos": "v.",
      "meaning": "注意到",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "notice",
      "pos": "n.",
      "meaning": "通知",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "number",
      "pos": "n.",
      "meaning": "数字",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "nurse",
      "pos": "n.",
      "meaning": "护士",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "o'clock",
      "pos": "n.",
      "meaning": "点钟",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "occupation",
      "pos": "n.",
      "meaning": "职业",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ocean",
      "pos": "n.",
      "meaning": "海洋",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "octopus",
      "pos": "n",
      "meaning": "章鱼",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "offer",
      "pos": "v.",
      "meaning": "提供",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "office",
      "pos": "n.",
      "meaning": "办公室",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "often",
      "pos": "adv.",
      "meaning": "经常",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "oil",
      "pos": "n.",
      "meaning": "油",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "Olympic",
      "pos": "adj.",
      "meaning": "奥林匹克的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "omelette",
      "pos": "n.",
      "meaning": "煎蛋卷",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "once",
      "pos": "adv.",
      "meaning": "曾经",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "online",
      "pos": "adv.",
      "meaning": "在线地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "online",
      "pos": "adj．",
      "meaning": "在线的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "only",
      "pos": "adj.",
      "meaning": "唯一的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "opera",
      "pos": "n.",
      "meaning": "歌剧",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "opinion",
      "pos": "n.",
      "meaning": "意见",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "opposite",
      "pos": "prep.",
      "meaning": "在……对面",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "opposite",
      "pos": "adj.",
      "meaning": "相反的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "order",
      "pos": "n.",
      "meaning": "命令",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "order",
      "pos": "v.",
      "meaning": "命令",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "other",
      "pos": "adj.",
      "meaning": "其他的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "other",
      "pos": "pron.",
      "meaning": "其他",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "outdoor",
      "pos": "adj.",
      "meaning": "户外的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "outdoors",
      "pos": "adv.",
      "meaning": "在户外",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "outdoors",
      "pos": "n.",
      "meaning": "户外",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "oven",
      "pos": "n.",
      "meaning": "烤箱",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "overnight",
      "pos": "adj",
      "meaning": "一整夜的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "own",
      "pos": "adj.",
      "meaning": "自己的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "own",
      "pos": "v.",
      "meaning": "拥有",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "p.m.",
      "pos": "abbr.",
      "meaning": "下午",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pack",
      "pos": "v.",
      "meaning": "打包",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pack",
      "pos": "n.",
      "meaning": "包",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pain",
      "pos": "n.",
      "meaning": "疼痛",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "paint",
      "pos": "n.",
      "meaning": "油漆",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "paint",
      "pos": "v.",
      "meaning": "在…刷油漆；",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "painter",
      "pos": "n.",
      "meaning": "画家",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "painting",
      "pos": "n.",
      "meaning": "刷油漆",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pair",
      "pos": "n.",
      "meaning": "一对",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pale",
      "pos": "adj.",
      "meaning": "苍白的",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "paper",
      "pos": "n.",
      "meaning": "纸",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "parent",
      "pos": "n.",
      "meaning": "父亲（或母亲）",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "park",
      "pos": "v.",
      "meaning": "泊（车）",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "parking lot",
      "pos": "n.",
      "meaning": "停车场",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "part",
      "pos": "n.",
      "meaning": "部分",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "partner",
      "pos": "n.",
      "meaning": "伙伴",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "party",
      "pos": "n.",
      "meaning": "（同行的）群，组，队",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pass",
      "pos": "v.",
      "meaning": "通过",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pass",
      "pos": "n.",
      "meaning": "通行证",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "passenger",
      "pos": "n.",
      "meaning": "乘客",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "passport",
      "pos": "n．",
      "meaning": "护照",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "password",
      "pos": "n.",
      "meaning": "密码",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "past",
      "pos": "n.",
      "meaning": "过去",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "past",
      "pos": "prep.",
      "meaning": "在……之后",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "path",
      "pos": "n.",
      "meaning": "路径",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "patient",
      "pos": "n",
      "meaning": "病人",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pay",
      "pos": "v.",
      "meaning": "支付",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "PC",
      "pos": "abbr.",
      "meaning": "个人计算机",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pence",
      "pos": "n.",
      "meaning": "便士",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pencil case",
      "pos": "phrase.",
      "meaning": "铅笔盒",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "penfriend",
      "pos": "n.",
      "meaning": "笔友",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "penny",
      "pos": "n.",
      "meaning": "便士",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "people",
      "pos": "n.",
      "meaning": "人",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pepper",
      "pos": "n.",
      "meaning": "胡椒",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "perfect",
      "pos": "adj.",
      "meaning": "完美的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "perform",
      "pos": "v.",
      "meaning": "执行",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "performance",
      "pos": "n.",
      "meaning": "表现",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "perfume",
      "pos": "n.",
      "meaning": "香水",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "person",
      "pos": "n.",
      "meaning": "人",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "petrol",
      "pos": "n.",
      "meaning": "汽油",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "petrol station",
      "pos": "n.",
      "meaning": "加油站",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pharmacy",
      "pos": "n.",
      "meaning": "药店",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "phone",
      "pos": "v.",
      "meaning": "打电话给",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "photo",
      "pos": "n.",
      "meaning": "照片",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "photograph",
      "pos": "n.",
      "meaning": "照片",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "photographer",
      "pos": "n.",
      "meaning": "摄影师",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "photography",
      "pos": "n.",
      "meaning": "摄影",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "physics",
      "pos": "n.",
      "meaning": "物理学",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "piano",
      "pos": "n.",
      "meaning": "钢琴",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pick up",
      "pos": "phrase.",
      "meaning": "（开车）接载（人）",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "picnic",
      "pos": "v.",
      "meaning": "去野餐",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "picture",
      "pos": "n.",
      "meaning": "图片",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "piece",
      "pos": "n.",
      "meaning": "（写作、音乐或艺术的）作品",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pillow",
      "pos": "n.",
      "meaning": "枕头",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pilot",
      "pos": "n.",
      "meaning": "飞行员",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pin",
      "pos": "n",
      "meaning": "别针",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pink",
      "pos": "n.",
      "meaning": "粉色",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pity",
      "pos": "n.",
      "meaning": "怜悯",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pity",
      "pos": "v.",
      "meaning": "怜悯",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pizza",
      "pos": "n.",
      "meaning": "比萨饼",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "place",
      "pos": "n.",
      "meaning": "地方",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "plan",
      "pos": "n.",
      "meaning": "计划",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "plan",
      "pos": "v.",
      "meaning": "计划",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "plane",
      "pos": "n.",
      "meaning": "飞机",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "plant",
      "pos": "n.",
      "meaning": "植物",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "plant",
      "pos": "v.",
      "meaning": "种植",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "plastic",
      "pos": "adj.",
      "meaning": "塑料的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "plastic",
      "pos": "n.",
      "meaning": "塑料",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "plate",
      "pos": "n.",
      "meaning": "盘子",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "platform",
      "pos": "n.",
      "meaning": "平台",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "play",
      "pos": "v.",
      "meaning": "参加（体育运动或比赛）；弹奏（音乐）",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pleasant",
      "pos": "adj.",
      "meaning": "令人愉快的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pleased",
      "pos": "adj.",
      "meaning": "高兴的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "plug",
      "pos": "n",
      "meaning": "插头",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "plus",
      "pos": "prep.",
      "meaning": "加",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pocket",
      "pos": "n.",
      "meaning": "口袋",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "point",
      "pos": "n.",
      "meaning": "得分",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "point",
      "pos": "n.",
      "meaning": "观点, 要点",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "point",
      "pos": "v.",
      "meaning": "指",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "police",
      "pos": "n.",
      "meaning": "警察",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "police car",
      "pos": "n.",
      "meaning": "警车",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "police officer",
      "pos": "phrase.",
      "meaning": "警察",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "police station",
      "pos": "n.",
      "meaning": "警察局",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "polite",
      "pos": "adj.",
      "meaning": "有礼貌的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "poor",
      "pos": "adj.",
      "meaning": "贫穷的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pop",
      "pos": "n.",
      "meaning": "流行音乐",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "popular",
      "pos": "adj.",
      "meaning": "受欢迎的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "port",
      "pos": "n.",
      "meaning": "港口",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "possible",
      "pos": "adj.",
      "meaning": "可能的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "possibly",
      "pos": "adv.",
      "meaning": "可能地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "post",
      "pos": "n.",
      "meaning": "邮政",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "post",
      "pos": "v.",
      "meaning": "邮寄",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "post office",
      "pos": "phrase.",
      "meaning": "邮局",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "postcard",
      "pos": "n.",
      "meaning": "明信片",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "poster",
      "pos": "n.",
      "meaning": "海报",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pound",
      "pos": "n.",
      "meaning": "英镑",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "practice",
      "pos": "n.",
      "meaning": "练习",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "practise",
      "pos": "v.",
      "meaning": "练习",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "prefer",
      "pos": "v.",
      "meaning": "更喜欢",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "prepare",
      "pos": "v.",
      "meaning": "准备",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "present",
      "pos": "adj.",
      "meaning": "现在的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pretty",
      "pos": "adv.",
      "meaning": "相当",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "price",
      "pos": "n.",
      "meaning": "价格",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "print",
      "pos": "v.",
      "meaning": "打印",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "printer",
      "pos": "n.",
      "meaning": "打印机",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "prize",
      "pos": "n.",
      "meaning": "奖品",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "probably",
      "pos": "adv.",
      "meaning": "很可能",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "problem",
      "pos": "n.",
      "meaning": "问题",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "professional",
      "pos": "adj",
      "meaning": "专业的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "program",
      "pos": "n.",
      "meaning": "程序",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "project",
      "pos": "n.",
      "meaning": "项目",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "promise",
      "pos": "n",
      "meaning": "承诺",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "public",
      "pos": "adj",
      "meaning": "公开的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pull",
      "pos": "v.",
      "meaning": "拉",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "pupil",
      "pos": "n.",
      "meaning": "小学生",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "purple",
      "pos": "n.",
      "meaning": "紫色",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "purse",
      "pos": "n.",
      "meaning": "钱包",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "push",
      "pos": "v.",
      "meaning": "推",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "put on",
      "pos": "phrase.",
      "meaning": "穿上",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "puzzle",
      "pos": "n.",
      "meaning": "谜题",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "quarter",
      "pos": "n.",
      "meaning": "四分之一",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "queen",
      "pos": "n.",
      "meaning": "女王",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "question",
      "pos": "v.",
      "meaning": "询问",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "quick",
      "pos": "adj.",
      "meaning": "快的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "quickly",
      "pos": "adv.",
      "meaning": "迅速地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "quiet",
      "pos": "adj.",
      "meaning": "安静的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "quite",
      "pos": "adv.",
      "meaning": "相当",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "quiz",
      "pos": "n.",
      "meaning": "测验",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "race",
      "pos": "v.",
      "meaning": "参加比赛",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "racket",
      "pos": "n.",
      "meaning": "球拍",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "radio",
      "pos": "n.",
      "meaning": "收音机",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "railway",
      "pos": "n.",
      "meaning": "铁路",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "raincoat",
      "pos": "n.",
      "meaning": "雨衣",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "rap",
      "pos": "n.",
      "meaning": "说唱音乐",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "reading",
      "pos": "v.",
      "meaning": "阅读",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ready",
      "pos": "adj.",
      "meaning": "准备好的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "real",
      "pos": "adj.",
      "meaning": "真实的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "really",
      "pos": "adv.",
      "meaning": "真正地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "reason",
      "pos": "n.",
      "meaning": "原因",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "reason",
      "pos": "v.",
      "meaning": "推理",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "receipt",
      "pos": "n.",
      "meaning": "收据",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "receive",
      "pos": "v.",
      "meaning": "收到",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "recently",
      "pos": "adv",
      "meaning": "不久前；最近",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "receptionist",
      "pos": "n.",
      "meaning": "接待员",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "recipe",
      "pos": "n.",
      "meaning": "食谱",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "record",
      "pos": "v.",
      "meaning": "记录",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "record",
      "pos": "n.",
      "meaning": "记录",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "red",
      "pos": "n.",
      "meaning": "红色",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "refrigerator",
      "pos": "n.",
      "meaning": "冰箱",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "regret",
      "pos": "n",
      "meaning": "遗憾",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "relax",
      "pos": "v.",
      "meaning": "放松",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "relaxing",
      "pos": "adj.",
      "meaning": "令人放松的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "remember",
      "pos": "v.",
      "meaning": "记得",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "rent",
      "pos": "v.",
      "meaning": "租用",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "repair",
      "pos": "n.",
      "meaning": "修理",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "repair",
      "pos": "v.",
      "meaning": "修理",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "repeat",
      "pos": "v.",
      "meaning": "重复",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "reply",
      "pos": "n",
      "meaning": "回复",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "report",
      "pos": "n",
      "meaning": "报告",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "request",
      "pos": "v",
      "meaning": "请求",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "rescue",
      "pos": "v",
      "meaning": "营救",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "research",
      "pos": "n",
      "meaning": "研究",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "reserve",
      "pos": "v",
      "meaning": "预订",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "respect",
      "pos": "n",
      "meaning": "尊重",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "rest",
      "pos": "n.",
      "meaning": "休息",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "rest",
      "pos": "v.",
      "meaning": "休息",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "restaurant",
      "pos": "n.",
      "meaning": "餐厅",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "return",
      "pos": "v.",
      "meaning": "返回",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "return",
      "pos": "n.",
      "meaning": "返回",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "review",
      "pos": "n.",
      "meaning": "评论",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "rich",
      "pos": "adj．",
      "meaning": "富有的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ride",
      "pos": "n.",
      "meaning": "骑（自行车、马等）；搭乘（车）",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ride",
      "pos": "v.",
      "meaning": "骑（自行车、马等）；搭乘（车）",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "right",
      "pos": "int.",
      "meaning": "好的，对（用于表示明白或同意某人的话）",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "right hand",
      "pos": "n.",
      "meaning": "右手",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ring",
      "pos": "n.",
      "meaning": "戒指",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ring",
      "pos": "v.",
      "meaning": "响铃",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "roast",
      "pos": "adj.",
      "meaning": "烤过的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "rock",
      "pos": "n.",
      "meaning": "岩石",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "roof",
      "pos": "n.",
      "meaning": "屋顶",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "round",
      "pos": "adv.",
      "meaning": "周围地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "roundabout",
      "pos": "n.",
      "meaning": "环形交叉路口",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "rubbish",
      "pos": "n.",
      "meaning": "垃圾",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "rugby",
      "pos": "n.",
      "meaning": "橄榄球",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "rule",
      "pos": "n",
      "meaning": "规则",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ruler",
      "pos": "n.",
      "meaning": "统治者；支配者",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "run",
      "pos": "v.",
      "meaning": "管理，经营",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "runner",
      "pos": "n.",
      "meaning": "跑步者",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "running",
      "pos": "n.",
      "meaning": "跑步",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "safe",
      "pos": "adj.",
      "meaning": "安全的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sail",
      "pos": "v.",
      "meaning": "航行",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sailing",
      "pos": "n.",
      "meaning": "帆船运动",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sale",
      "pos": "n.",
      "meaning": "销售",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sale",
      "pos": "n.",
      "meaning": "减价出售",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "salt",
      "pos": "n.",
      "meaning": "盐",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "same",
      "pos": "adj.",
      "meaning": "相同的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "same",
      "pos": "n.",
      "meaning": "同样的人（或事物）",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sauce",
      "pos": "n.",
      "meaning": "调味汁",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sausage",
      "pos": "n.",
      "meaning": "香肠",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "save",
      "pos": "vt.",
      "meaning": "拯救",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "scared",
      "pos": "adj.",
      "meaning": "害怕的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "scarf",
      "pos": "n.",
      "meaning": "围巾",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "scary",
      "pos": "adj.",
      "meaning": "可怕的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "schoolchild",
      "pos": "n.",
      "meaning": "学童",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "science",
      "pos": "n.",
      "meaning": "科学",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "scientist",
      "pos": "n.",
      "meaning": "科学家",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "scissors",
      "pos": "n.",
      "meaning": "剪刀",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "scooter",
      "pos": "n.",
      "meaning": "滑板车",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "score",
      "pos": "n.",
      "meaning": "得分",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "score",
      "pos": "v.",
      "meaning": "得分",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "screen",
      "pos": "n．",
      "meaning": "屏幕",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "second-hand",
      "pos": "adv",
      "meaning": "二手地",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "secret",
      "pos": "adj",
      "meaning": "秘密的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "secretary",
      "pos": "n.",
      "meaning": "秘书",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "selfie",
      "pos": "n.",
      "meaning": "自拍",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sell",
      "pos": "v.",
      "meaning": "卖",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "send",
      "pos": "v.",
      "meaning": "发送",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "serious",
      "pos": "adj.",
      "meaning": "严重的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "serve",
      "pos": "v.",
      "meaning": "提供",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "set",
      "pos": "n.",
      "meaning": "套",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "several",
      "pos": "adj.",
      "meaning": "几个",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "several",
      "pos": "pron",
      "meaning": "几个",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "shame",
      "pos": "n.",
      "meaning": "羞耻",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "shampoo",
      "pos": "n.",
      "meaning": "洗发水",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "share",
      "pos": "v.",
      "meaning": "分享",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sheet",
      "pos": "n.",
      "meaning": "床单",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "shelf",
      "pos": "n.",
      "meaning": "架子",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "shop assistant",
      "pos": "n.",
      "meaning": "店员",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "shopping",
      "pos": "n.",
      "meaning": "购物",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "show",
      "pos": "n.",
      "meaning": "演出",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "shower",
      "pos": "n.",
      "meaning": "淋浴",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "shower",
      "pos": "v.",
      "meaning": "淋浴",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "shut",
      "pos": "vt.",
      "meaning": "关闭",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "shy",
      "pos": "adj.",
      "meaning": "害羞的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "side",
      "pos": "n.",
      "meaning": "边",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sightseeing",
      "pos": "n.",
      "meaning": "观光",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sign",
      "pos": "n.",
      "meaning": "标志",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "signal",
      "pos": "n",
      "meaning": "信号",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "silk",
      "pos": "n",
      "meaning": "丝绸",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "silver",
      "pos": "n.",
      "meaning": "银",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "silver",
      "pos": "adj.",
      "meaning": "银色的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "similar",
      "pos": "adj.",
      "meaning": "相似的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "simple",
      "pos": "adj.",
      "meaning": "简单的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "since",
      "pos": "conj.",
      "meaning": "自从",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "since",
      "pos": "adv.",
      "meaning": "自从",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "since",
      "pos": "prep.",
      "meaning": "自从",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "singer",
      "pos": "n.",
      "meaning": "歌手",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "single",
      "pos": "adj.",
      "meaning": "单一的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sink",
      "pos": "vi.",
      "meaning": "下沉",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sit down",
      "pos": "phrase.",
      "meaning": "坐下",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "site",
      "pos": "n.",
      "meaning": "地点",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sitting room",
      "pos": "phrase.",
      "meaning": "客厅",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "size",
      "pos": "n.",
      "meaning": "大小",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "skate",
      "pos": "v.",
      "meaning": "滑冰",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "skateboard",
      "pos": "n.",
      "meaning": "滑板",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "skateboarding",
      "pos": "n.",
      "meaning": "滑板运动",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "skating",
      "pos": "v.",
      "meaning": "滑冰",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ski",
      "pos": "n.",
      "meaning": "滑雪板",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ski",
      "pos": "v.",
      "meaning": "滑雪",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "skiing",
      "pos": "n.",
      "meaning": "滑雪",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sleep",
      "pos": "n.",
      "meaning": "睡眠",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sleep",
      "pos": "v.",
      "meaning": "睡觉",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "slice",
      "pos": "n.",
      "meaning": "片",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "slim",
      "pos": "adj.",
      "meaning": "纤细的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "slow",
      "pos": "adj.",
      "meaning": "缓慢的",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "slow",
      "pos": "v.",
      "meaning": "放慢",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "slowly",
      "pos": "adv.",
      "meaning": "慢慢地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "smart",
      "pos": "adj.",
      "meaning": "聪明的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "check in",
      "pos": "phr. v.",
      "meaning": "托运",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "smoke",
      "pos": "v.",
      "meaning": "冒烟",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "smoking",
      "pos": "n.",
      "meaning": "吸烟",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "snack",
      "pos": "n.",
      "meaning": "零食",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "snowboard",
      "pos": "v.",
      "meaning": "滑雪板运动",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "snowboarding",
      "pos": "n.",
      "meaning": "滑雪板运动",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "soap",
      "pos": "v.",
      "meaning": "用肥皂洗",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "soccer",
      "pos": "n.",
      "meaning": "足球",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "social media",
      "pos": "phrase.",
      "meaning": "社交媒体",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "soft",
      "pos": "adj.",
      "meaning": "柔软的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "software",
      "pos": "n.",
      "meaning": "软件",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "somebody",
      "pos": "pron.",
      "meaning": "某人",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "somebody",
      "pos": "n.",
      "meaning": "重要人物",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "somewhere",
      "pos": "adv.",
      "meaning": "在某处",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "soon",
      "pos": "adv.",
      "meaning": "不久",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sort",
      "pos": "n.",
      "meaning": "种类",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sort",
      "pos": "v.",
      "meaning": "分类",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sound",
      "pos": "v.",
      "meaning": "听起来",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sound",
      "pos": "n.",
      "meaning": "声音",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "south",
      "pos": "n.",
      "meaning": "南方",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "south",
      "pos": "adj.",
      "meaning": "南方的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "south",
      "pos": "adv.",
      "meaning": "向南",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "southwest",
      "pos": "n",
      "meaning": "西南部",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "space",
      "pos": "n.",
      "meaning": "空间",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "spare",
      "pos": "adj.",
      "meaning": "备用的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "spare",
      "pos": "v.",
      "meaning": "抽出",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "speaker",
      "pos": "n.",
      "meaning": "说话者",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "special",
      "pos": "n.",
      "meaning": "特价商品",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "special",
      "pos": "adj.",
      "meaning": "特别的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "spelling",
      "pos": "n.",
      "meaning": "拼写",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "spend",
      "pos": "v.",
      "meaning": "花费",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "spider",
      "pos": "n",
      "meaning": "蜘蛛",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "spoon",
      "pos": "n.",
      "meaning": "勺子",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sport",
      "pos": "n.",
      "meaning": "运动",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sports centre",
      "pos": "n.",
      "meaning": "体育中心",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "square",
      "pos": "n.",
      "meaning": "广场",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "stadium",
      "pos": "n.",
      "meaning": "体育场",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "staff",
      "pos": "n.",
      "meaning": "全体员工",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "stage",
      "pos": "n.",
      "meaning": "阶段",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "stairs",
      "pos": "n.",
      "meaning": "楼梯",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "stamp",
      "pos": "n.",
      "meaning": "邮票",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "stand",
      "pos": "v.",
      "meaning": "位于",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "stand",
      "pos": "v.",
      "meaning": "忍受，承受",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "start",
      "pos": "n.",
      "meaning": "开始",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "station",
      "pos": "n.",
      "meaning": "车站",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "station",
      "pos": "n.",
      "meaning": "(电、电视)台",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "stay",
      "pos": "v.",
      "meaning": "停留",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "steak",
      "pos": "n.",
      "meaning": "牛排",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "steal",
      "pos": "v.",
      "meaning": "偷",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "stick",
      "pos": "n",
      "meaning": "棍",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "still",
      "pos": "adj.",
      "meaning": "静止的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "stomach",
      "pos": "n.",
      "meaning": "胃",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "stomachache",
      "pos": "n.",
      "meaning": "胃痛",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "stop",
      "pos": "n.",
      "meaning": "车站",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "store",
      "pos": "n.",
      "meaning": "商店",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "store",
      "pos": "v.",
      "meaning": "储存",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "storm",
      "pos": "n.",
      "meaning": "暴风雨",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "straight",
      "pos": "adv.",
      "meaning": "直接地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "straight",
      "pos": "adv.",
      "meaning": "直地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "strange",
      "pos": "adj.",
      "meaning": "奇怪的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "strawberry",
      "pos": "n.",
      "meaning": "草莓",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "street",
      "pos": "n.",
      "meaning": "街道",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "strike",
      "pos": "n",
      "meaning": "罢工",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "striped",
      "pos": "adj.",
      "meaning": "有条纹的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "stripes",
      "pos": "n.",
      "meaning": "条纹",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "study",
      "pos": "n.",
      "meaning": "学习",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "stuff",
      "pos": "v.",
      "meaning": "填满",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "success",
      "pos": "n.",
      "meaning": "成功",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "successful",
      "pos": "adj.",
      "meaning": "成功的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "such",
      "pos": "pron.",
      "meaning": "这样的人（或事物）",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "suddenly",
      "pos": "adv.",
      "meaning": "突然地",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sugar",
      "pos": "n.",
      "meaning": "糖",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "suggest",
      "pos": "v.",
      "meaning": "建议",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "suit",
      "pos": "n.",
      "meaning": "套装",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "suit",
      "pos": "v.",
      "meaning": "适合",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "suitcase",
      "pos": "n.",
      "meaning": "行李箱",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sunglasses",
      "pos": "n.",
      "meaning": "太阳镜",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "supermarket",
      "pos": "n.",
      "meaning": "超市",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "supper",
      "pos": "n.",
      "meaning": "晚餐",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "support",
      "pos": "v",
      "meaning": "支持",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "suppose",
      "pos": "v.",
      "meaning": "假设",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sure",
      "pos": "adv.",
      "meaning": "当然",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "surf",
      "pos": "v.",
      "meaning": "(在互联网上)浏览；冲浪",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "surfboard",
      "pos": "n.",
      "meaning": "冲浪板",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "surfing",
      "pos": "n.",
      "meaning": "冲浪运动",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "surname",
      "pos": "n.",
      "meaning": "姓氏",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "surprise",
      "pos": "n.",
      "meaning": "惊喜",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "surprise",
      "pos": "v.",
      "meaning": "使惊奇",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "surprised",
      "pos": "adj.",
      "meaning": "感到惊讶的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "surprising",
      "pos": "adj.",
      "meaning": "令人惊讶的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "swan",
      "pos": "n.",
      "meaning": "天鹅",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sweet",
      "pos": "adj.",
      "meaning": "惹人喜爱的，可爱的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "sweet",
      "pos": "n.",
      "meaning": "糖果",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "swimming",
      "pos": "n.",
      "meaning": "游泳",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "swimming costume",
      "pos": "phrase.",
      "meaning": "游泳衣",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "switch",
      "pos": "n",
      "meaning": "开关",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tablet",
      "pos": "n.",
      "meaning": "药片",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tail",
      "pos": "n.",
      "meaning": "尾巴",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "take off",
      "pos": "phrase.",
      "meaning": "（飞机等）起飞",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "take part",
      "pos": "phrase.",
      "meaning": "参加",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "taste",
      "pos": "n",
      "meaning": "味道",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tasty",
      "pos": "adj.",
      "meaning": "美味的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "team",
      "pos": "n.",
      "meaning": "团队",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tear",
      "pos": "n",
      "meaning": "眼泪",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "technology",
      "pos": "n.",
      "meaning": "技术",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "teenager",
      "pos": "n.",
      "meaning": "青少年",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "telephone",
      "pos": "v.",
      "meaning": "打电话",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "telephone",
      "pos": "n.",
      "meaning": "电话",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "television",
      "pos": "n.",
      "meaning": "电视机",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "temperature",
      "pos": "n.",
      "meaning": "温度",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tent",
      "pos": "n.",
      "meaning": "帐篷",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "term",
      "pos": "n.",
      "meaning": "学期",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "terrible",
      "pos": "adj.",
      "meaning": "可怕的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "test",
      "pos": "n.",
      "meaning": "测试",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "test",
      "pos": "v.",
      "meaning": "测试",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "text message",
      "pos": "n.",
      "meaning": "短信",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "textbook",
      "pos": "n.",
      "meaning": "教科书",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "theatre",
      "pos": "n.",
      "meaning": "剧院",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "themselves",
      "pos": "pron.",
      "meaning": "他们自己",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "these",
      "pos": "pron.",
      "meaning": "这些",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "thin",
      "pos": "adj.",
      "meaning": "薄的；细的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "thirsty",
      "pos": "adj.",
      "meaning": "渴望的，渴求的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "those",
      "pos": "pron.",
      "meaning": "那些",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "through",
      "pos": "prep.",
      "meaning": "通过",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "through",
      "pos": "adv.",
      "meaning": "通过",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "throw",
      "pos": "v.",
      "meaning": "扔",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "thunderstorm",
      "pos": "n.",
      "meaning": "雷暴",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "ticket",
      "pos": "n.",
      "meaning": "票",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tidy",
      "pos": "v.",
      "meaning": "整理",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tidy up",
      "pos": "phrase.",
      "meaning": "整理",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tie",
      "pos": "n.",
      "meaning": "领带",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tie",
      "pos": "v.",
      "meaning": "系",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tights",
      "pos": "n.",
      "meaning": "紧身裤",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "till",
      "pos": "prep.",
      "meaning": "直到",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "timetable",
      "pos": "n.",
      "meaning": "时刻表",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "title",
      "pos": "n.",
      "meaning": "标题",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "toast",
      "pos": "n.",
      "meaning": "吐司",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "toe",
      "pos": "n.",
      "meaning": "脚趾",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "together",
      "pos": "adv.",
      "meaning": "一起",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tonight",
      "pos": "adv.",
      "meaning": "今晚",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tonight",
      "pos": "n.",
      "meaning": "今晚",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "topic",
      "pos": "n.",
      "meaning": "话题",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tortoise",
      "pos": "n.",
      "meaning": "陆龟；海龟",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "total",
      "pos": "n.",
      "meaning": "总数",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "total",
      "pos": "adj.",
      "meaning": "总的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tour",
      "pos": "n.",
      "meaning": "旅行",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tour",
      "pos": "v.",
      "meaning": "旅游",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tour guide",
      "pos": "n.",
      "meaning": "导游",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tourist",
      "pos": "n.",
      "meaning": "游客",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tourist information centre",
      "pos": "phrase.",
      "meaning": "游客信息中心",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "traffic",
      "pos": "n.",
      "meaning": "交通",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "traffic light",
      "pos": "phrase.",
      "meaning": "交通信号灯",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "train",
      "pos": "v.",
      "meaning": "训练",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "trainer",
      "pos": "n.",
      "meaning": "教练",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "training",
      "pos": "n.",
      "meaning": "训练",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tram",
      "pos": "n.",
      "meaning": "电车",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "transport",
      "pos": "n.",
      "meaning": "运输",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "travel",
      "pos": "n.",
      "meaning": "旅行",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "trip",
      "pos": "n.",
      "meaning": "旅行",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "trouble",
      "pos": "n.",
      "meaning": "麻烦",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "try on",
      "pos": "phrase.",
      "meaning": "试穿",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tune",
      "pos": "v.",
      "meaning": "调整",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "turn",
      "pos": "v.",
      "meaning": "使......转动",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "turn",
      "pos": "n.",
      "meaning": "轮流",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "turn off",
      "pos": "phrase.",
      "meaning": "关掉（灯等）",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "turn on",
      "pos": "phrase.",
      "meaning": "打开",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "twice",
      "pos": "adv.",
      "meaning": "两次",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "type",
      "pos": "v",
      "meaning": "打字",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "typing",
      "pos": "v.",
      "meaning": "打字",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "tyre",
      "pos": "n.",
      "meaning": "轮胎",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "umbrella",
      "pos": "n.",
      "meaning": "雨伞",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "underground",
      "pos": "adj.",
      "meaning": "地下的",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "underground",
      "pos": "n.",
      "meaning": "地铁",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "understand",
      "pos": "v.",
      "meaning": "理解",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "unfortunately",
      "pos": "adv.",
      "meaning": "不幸地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "unhappy",
      "pos": "adj.",
      "meaning": "不开心的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "uniform",
      "pos": "n.",
      "meaning": "制服",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "university",
      "pos": "n.",
      "meaning": "大学",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "unusual",
      "pos": "adj.",
      "meaning": "不寻常的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "update",
      "pos": "v",
      "meaning": "更新",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "upload",
      "pos": "v.",
      "meaning": "上传",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "upset",
      "pos": "v.",
      "meaning": "使心烦",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "upstairs",
      "pos": "adj.",
      "meaning": "楼上的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "use",
      "pos": "n.",
      "meaning": "使用",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "useful",
      "pos": "adj.",
      "meaning": "有用的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "usual",
      "pos": "adj.",
      "meaning": "通常的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "usually",
      "pos": "adv.",
      "meaning": "通常",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "variety",
      "pos": "n.",
      "meaning": "多样化",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "various",
      "pos": "adj.",
      "meaning": "各种各样的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "vegetable",
      "pos": "n.",
      "meaning": "蔬菜",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "vegetarian",
      "pos": "n",
      "meaning": "素食者",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "versus",
      "pos": "prep.",
      "meaning": "对抗",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "video",
      "pos": "adj.",
      "meaning": "视频的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "video",
      "pos": "n",
      "meaning": "视频",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "video game",
      "pos": "phrase.",
      "meaning": "电子游戏",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "view",
      "pos": "n.",
      "meaning": "看法",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "village",
      "pos": "n.",
      "meaning": "村庄",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "violin",
      "pos": "n.",
      "meaning": "小提琴",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "visit",
      "pos": "v.",
      "meaning": "参观，游览",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "visiting",
      "pos": "adj.",
      "meaning": "访问的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "visitor",
      "pos": "n.",
      "meaning": "来访者",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "volleyball",
      "pos": "n.",
      "meaning": "排球",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "volunteer",
      "pos": "v",
      "meaning": "自愿做",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "vote",
      "pos": "v",
      "meaning": "投票",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wait",
      "pos": "v.",
      "meaning": "等待",
      "level": "LV2（上）",
      "cefr_level": "B2",
      "cambridge_level": "FCE",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "waiter",
      "pos": "n.",
      "meaning": "服务员",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "waitress",
      "pos": "n.",
      "meaning": "女服务员",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wake",
      "pos": "v.",
      "meaning": "醒来",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wake up",
      "pos": "phrase.",
      "meaning": "叫醒",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "walk",
      "pos": "v.",
      "meaning": "牵着（动物）走",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "walking",
      "pos": "n.",
      "meaning": "步行",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wall",
      "pos": "n.",
      "meaning": "墙",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wallet",
      "pos": "n.",
      "meaning": "钱包",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wardrobe",
      "pos": "n.",
      "meaning": "衣柜",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wash",
      "pos": "v",
      "meaning": "洗",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wash up",
      "pos": "phrase.",
      "meaning": "洗漱",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "washing machine",
      "pos": "phrase.",
      "meaning": "洗衣机",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "washing-up",
      "pos": "phrase.",
      "meaning": "洗餐具",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "waste",
      "pos": "adj",
      "meaning": "废弃的",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "way",
      "pos": "n.",
      "meaning": "方法",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "weekly",
      "pos": "adj",
      "meaning": "每周的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "welcome",
      "pos": "adj.",
      "meaning": "受欢迎的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "well",
      "pos": "adj.",
      "meaning": "健康的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "well known",
      "pos": "adj.",
      "meaning": "众所周知的",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "west",
      "pos": "n.",
      "meaning": "西方",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "west",
      "pos": "adj.",
      "meaning": "西方的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "west",
      "pos": "adv.",
      "meaning": "向西",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "whale",
      "pos": "v.",
      "meaning": "捕鲸",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wheel",
      "pos": "n.",
      "meaning": "轮子",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "while",
      "pos": "n.",
      "meaning": "一段时间",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "white",
      "pos": "n.",
      "meaning": "白色",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "whole",
      "pos": "adj.",
      "meaning": "整个的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "whole",
      "pos": "n.",
      "meaning": "整体",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wide",
      "pos": "adv.",
      "meaning": "广泛地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wide",
      "pos": "adj.",
      "meaning": "宽的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wife",
      "pos": "n.",
      "meaning": "妻子",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wifi",
      "pos": "n.",
      "meaning": "无线网络",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wild",
      "pos": "adj.",
      "meaning": "野生的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wild",
      "pos": "n.",
      "meaning": "野生环境",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wildlife",
      "pos": "n.",
      "meaning": "野生动物",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wind",
      "pos": "v.",
      "meaning": "蜿蜒前进，迂回",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "windsurfing",
      "pos": "n.",
      "meaning": "帆板运动",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wing",
      "pos": "n",
      "meaning": "翅膀",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "winner",
      "pos": "n.",
      "meaning": "获胜者",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "without",
      "pos": "prep.",
      "meaning": "没有",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wood",
      "pos": "n.",
      "meaning": "木材",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wooden",
      "pos": "adj.",
      "meaning": "木制的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wool",
      "pos": "n.",
      "meaning": "羊毛",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "work",
      "pos": "n.",
      "meaning": "作品",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "work out",
      "pos": "phrase.",
      "meaning": "解决",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "worried",
      "pos": "adj.",
      "meaning": "担心的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "worry",
      "pos": "n.",
      "meaning": "担心",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "worst",
      "pos": "adj.",
      "meaning": "最差的",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "worst",
      "pos": "adv.",
      "meaning": "最糟糕地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "write down",
      "pos": "phrase.",
      "meaning": "写下",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "writer",
      "pos": "n.",
      "meaning": "作家",
      "level": "LV2（上）",
      "cefr_level": "B1",
      "cambridge_level": "PET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "writing",
      "pos": "n.",
      "meaning": "写作",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "wrong",
      "pos": "adv.",
      "meaning": "错误地",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "yellow",
      "pos": "n.",
      "meaning": "黄色",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "yoghurt",
      "pos": "n.",
      "meaning": "酸奶",
      "level": "LV2（上）",
      "cefr_level": "",
      "cambridge_level": "",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "yourself",
      "pos": "pron.",
      "meaning": "你自己",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    },
    {
      "word": "zero",
      "pos": "n.",
      "meaning": "零",
      "level": "LV2（上）",
      "cefr_level": "A2",
      "cambridge_level": "KET",
      "difficulty": 2,
      "enabled": true
    }
  ]
}