n.

　　腐爛;腐朽 the process or result of being destroyed by natural causes or by not being cared for

　　衰敗，衰退 the gradual destruction of a society, an institution, a system, etc.

　　同義詞

　　n. decline，decomposition，disintegration，radioactive decay

　　v. crumble，decompose，delapidate，disintegrate

　　參考例句

　　1. The tree began to decay as soon as it was cut down.

　　樹(shù)一被砍倒，它就開(kāi)始腐朽。

　　2. I leave this prison of decay.

　　我離開(kāi)這座腐爛的監(jiān)獄。

　　3. One major problem is tooth decay.

　　一個(gè)主要的問(wèn)題是蛀牙。

　　參考例句

　　1.V-I When something such as a dead body, a dead plant, or a tooth decays, it is gradually destroyed by a natural process. 腐壞

　　例：The bodies buried in the fine ash slowly decayed.

　　埋在細(xì)灰里的尸體慢慢腐爛了。

　　2.N-UNCOUNT Decay is also a noun. 腐壞

　　例：When not removed, plaque causes tooth decay and gum disease.

　　牙斑沒(méi)有清除就會(huì)導(dǎo)致蛀牙和牙齦疾玻

　　3.decayed ADJ 腐壞的

　　例：Even young children have teeth so decayed they need to be pulled.

　　連幼兒也有這么嚴(yán)重的齲齒，需要拔掉。

　　4.V-I If something such as a society, system, or institution decays, it gradually becomes weaker or its condition gets worse. 衰敗

　　例：In practice, the agency system has decayed. Most agents now sell only to themselves or their immediate family.

　　實(shí)際上，這種代理制已經(jīng)衰退。現(xiàn)在，大多數(shù) 代理人 都只把產(chǎn)品賣(mài)給自己或親近的家人。

　　5.N-UNCOUNT Decay is also a noun. 衰敗

　　例：There are problems of urban decay and gang violence.

　　存在都市衰敗和黑幫暴力問(wèn)題。

　　常見(jiàn)用法

　　用作動(dòng)詞

　　Naomi: Your entrie body is begining to decay.

　　直美:你的整個(gè)身體都在衰退。

　　What made the Roman Empire decay?

　　羅馬帝國(guó)為何衰亡?

　　The dampness of the climate decayed the books.

　　氣候潮濕，把書(shū)都霉壞了。

　　The vegetables have begun to decay.

　　那些蔬菜已開(kāi)始腐爛。

　　用作名詞

　　His mental decay is distressing.

　　他的智力衰退令人苦惱。

　　Bacteria complete the job by causing decay.

　　細(xì)菌通過(guò)引起腐爛而完成這個(gè)變化。

　　The dentist could detect no decay in her teeth.

　　牙醫(yī)檢查了她的牙，未見(jiàn)有齲齒。

　　n.

　　腐爛;腐朽 the process or result of being destroyed by natural causes or by not being cared for

　　衰敗，衰退 the gradual destruction of a society, an institution, a system, etc.

　　同義詞

　　n. decline，decomposition，disintegration，radioactive decay

　　v. crumble，decompose，delapidate，disintegrate

　　參考例句

　　1. The tree began to decay as soon as it was cut down.

　　樹(shù)一被砍倒，它就開(kāi)始腐朽。

　　2. I leave this prison of decay.

　　我離開(kāi)這座腐爛的監(jiān)獄。

　　3. One major problem is tooth decay.

　　一個(gè)主要的問(wèn)題是蛀牙。

　　參考例句

　　1.V-I When something such as a dead body, a dead plant, or a tooth decays, it is gradually destroyed by a natural process. 腐壞

　　例：The bodies buried in the fine ash slowly decayed.

　　埋在細(xì)灰里的尸體慢慢腐爛了。

　　2.N-UNCOUNT Decay is also a noun. 腐壞

　　例：When not removed, plaque causes tooth decay and gum disease.

　　牙斑沒(méi)有清除就會(huì)導(dǎo)致蛀牙和牙齦疾玻

　　3.decayed ADJ 腐壞的

　　例：Even young children have teeth so decayed they need to be pulled.

　　連幼兒也有這么嚴(yán)重的齲齒，需要拔掉。

　　4.V-I If something such as a society, system, or institution decays, it gradually becomes weaker or its condition gets worse. 衰敗

　　例：In practice, the agency system has decayed. Most agents now sell only to themselves or their immediate family.

　　實(shí)際上，這種代理制已經(jīng)衰退。現(xiàn)在，大多數(shù) 代理人 都只把產(chǎn)品賣(mài)給自己或親近的家人。

　　5.N-UNCOUNT Decay is also a noun. 衰敗

　　例：There are problems of urban decay and gang violence.

　　存在都市衰敗和黑幫暴力問(wèn)題。

　　常見(jiàn)用法

　　用作動(dòng)詞

　　Naomi: Your entrie body is begining to decay.

　　直美:你的整個(gè)身體都在衰退。

　　What made the Roman Empire decay?

　　羅馬帝國(guó)為何衰亡?

　　The dampness of the climate decayed the books.

　　氣候潮濕，把書(shū)都霉壞了。

　　The vegetables have begun to decay.

　　那些蔬菜已開(kāi)始腐爛。

　　用作名詞

　　His mental decay is distressing.

　　他的智力衰退令人苦惱。

　　Bacteria complete the job by causing decay.

　　細(xì)菌通過(guò)引起腐爛而完成這個(gè)變化。

　　The dentist could detect no decay in her teeth.

　　牙醫(yī)檢查了她的牙，未見(jiàn)有齲齒。