{
  "_meta": {
    "name": "L1 自拼大纲",
    "source": "https://makee-interactive.feishu.cn/wiki/VHQJwGNjRiQZF2klpfUcGKYInVc",
    "source_title": "LV1参考-自拼大纲",
    "update_time": "2026-06-05",
    "total_items": 49,
    "description": "L1级别自然拼读教学大纲，按教学顺序排列。分三组：单字母、短元音词族、长元音组合。"
  },
  "groups": [
    {
      "name": "单字母",
      "range": "0-24",
      "items": [
        { "index": 0, "letters": "a" },
        { "index": 1, "letters": "b" },
        { "index": 2, "letters": "c" },
        { "index": 3, "letters": "d" },
        { "index": 4, "letters": "e" },
        { "index": 5, "letters": "f" },
        { "index": 6, "letters": "g" },
        { "index": 7, "letters": "h" },
        { "index": 8, "letters": "i" },
        { "index": 9, "letters": "j" },
        { "index": 10, "letters": "k" },
        { "index": 11, "letters": "l" },
        { "index": 12, "letters": "m" },
        { "index": 13, "letters": "n" },
        { "index": 14, "letters": "o" },
        { "index": 15, "letters": "p" },
        { "index": 16, "letters": "q" },
        { "index": 17, "letters": "r" },
        { "index": 18, "letters": "s" },
        { "index": 19, "letters": "t" },
        { "index": 20, "letters": "u" },
        { "index": 21, "letters": "v" },
        { "index": 22, "letters": "w" },
        { "index": 23, "letters": "x" },
        { "index": 24, "letters": "y z" }
      ]
    },
    {
      "name": "短元音词族",
      "range": "25-39",
      "items": [
        { "index": 25, "letters": "am" },
        { "index": 26, "letters": "an" },
        { "index": 27, "letters": "ad ag" },
        { "index": 28, "letters": "ap at" },
        { "index": 29, "letters": "et en" },
        { "index": 30, "letters": "ed" },
        { "index": 31, "letters": "ip ib" },
        { "index": 32, "letters": "id in" },
        { "index": 33, "letters": "ig it" },
        { "index": 34, "letters": "ix" },
        { "index": 35, "letters": "ot op" },
        { "index": 36, "letters": "ug ud" },
        { "index": 37, "letters": "up ut" },
        { "index": 38, "letters": "ub um" },
        { "index": 39, "letters": "un" }
      ]
    },
    {
      "name": "长元音组合",
      "range": "40-48",
      "items": [
        { "index": 40, "letters": "a_e ai" },
        { "index": 41, "letters": "ay" },
        { "index": 42, "letters": "e_e ee" },
        { "index": 43, "letters": "ea" },
        { "index": 44, "letters": "i_e ie" },
        { "index": 45, "letters": "igh" },
        { "index": 46, "letters": "o_e oa" },
        { "index": 47, "letters": "ow" },
        { "index": 48, "letters": "u_e ue ui" }
      ]
    }
  ]
}