decay

詞型變化：

名詞:decayer 動詞過去式:decayed 過去分詞:decayed 現在分詞:decaying 第三人稱單數:decays 英文字典

詞意辨析：

rot, decay, decompose

這些動詞均有“爛、腐爛”之意。
rot: 指蔬菜水果或肉類的分解、腐爛。
decay: 通常指事物（國家或人）由盛轉衰。
decompose: 側重指動物或植物類物體由於內部組織的分解而導致的腐爛過程。

相關句子：

1. The dentist could detect no decay in her teeth.
   牙醫檢查了她的牙，未見有齲齒。
2. A source of spreading corruption or decay.
   腐敗的原因傳布腐敗或腐朽的根源
3. Death and decay of body tissue, often occurring in a limb, caused by insufficient blood supply and usually following injury or disease.
   壞疽軟組織壞死或衰退，經常由供血不足和緊接著的受傷或疾病而發生在四肢
4. What made the Roman Empire decay?
   羅馬帝國為何衰亡？
5. The dampness of the climate decayed the books.
   氣候潮濕，把書都霉壞了。

英文解釋：

名詞 decay:

1. the process of gradually becoming inferior
2. a gradual decrease; as of stored charge or current
   同義詞：decline
3. the organic phenomenon of rotting
   同義詞：decomposition
4. an inferior state resulting from the process of decaying
5. the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation
   同義詞：radioactive decay, disintegration

動詞 decay:

1. lose a stored charge, magnetic flux, or current
   同義詞：disintegrate, decompose
2. fall into decay or ruin
   同義詞：crumble, delapidate
3. undergo decay or decomposition