退たい化か

import { getVocabById } from 'kotowa';
getVocabById('a702137b8a'); // 退化

{
  "id": "a702137b8a",
  "word": "退化",
  "reading": "たいか",
  "romaji": "taika",
  "meanings": [
    "degeneration",
    "retrogression"
  ],
  "level": "N1",
  "pos": [
    "n",
    "vs",
    "vi"
  ],
  "jmdict_id": 1411320,
  "examples": [
    {
      "ja": "人類は生態系の退化を防ぐことができるだろうか？",
      "en": "Will humanity be able to prevent the degradation of ecosystems?",
      "tatoeba_id": 412049
    }
  ],
  "zh": {
    "status": "reviewed",
    "source_hash": "fbcca891c2359e2ad0dbaa3767b5becc815c5beaaf67bea1a8b0fc44604bb07f",
    "meanings": [
      "退化"
    ],
    "examples": [
      {
        "ja": "人類は生態系の退化を防ぐことができるだろうか？",
        "zh": "人类能阻止生态系统退化吗？"
      }
    ],
    "references": [
      "upstream vocab/n1/a702137b8a",
      "JMdict ent_seq 1411320; checked against downloaded JMdict_e.gz on 2026-10-28",
      "Original Chinese authored and reviewed by Codex; no independent human review"
    ],
    "reviewer": "Codex",
    "review_method": "ai",
    "reviewed_at": "2026-10-28",
    "review_hash": "f4db168ef0ec42219d91f9719ff6300dbc40e9c5e5c8a623e1241b01239ac0b8"
  }
}