decay
英 [dɪˈkeɪ]
美 [dɪˈkeɪ]
- vi. 衰退，[核] 衰减；腐烂，腐朽
- n. 衰退，[核] 衰减；腐烂，腐朽
- vt. 使腐烂，使腐败；使衰退，使衰落
- n. (Decay)人名；(法)德凯
使用频率:
记忆方法
将“decay”与“day”联系记忆，想象每一天都是一个树木、石头或其他物体的“day”，随着时间的流逝，它们开始“decay”（衰退、腐朽）。这种方法通过形象化和对比来帮助记忆单词的含义。
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中文词源
decay 腐烂
de-, 向下。-cay, 同-cad, 掉落，词源同case, accident. 引申义腐烂。
英语词源
- decay
-
decay: [15] The notion underlying decay and its close relative decadence is of a ‘falling off’ from a condition of health or perfection. Decay comes from Old Northern French decair, a descendant of Vulgar Latin *dēcadere, which in turn came from Latin dēcidere, a compound verb formed from the prefix dē- ‘down, off, away’ and cadere ‘fall’ (source of English case and a wide range of related words). Decadence [16] was acquired via the medieval derivative dēcadentia. To the same word-family belongs deciduous [17], from Latin dēciduus, literally denoting the ‘falling off’ of leaves from trees.
=> accident, case, chance, decadence, deciduous - decay (v.)
- late 15c., "to decrease," from Anglo-French decair, Old North French decair (Old French decheoir, 12c., Modern French déchoir) "to fall, set (of the sun), weaken, decline, decay," from Vulgar Latin *decadere "to fall off," from de- (see de-) + Latin cadere "to fall" (see case (n.1)). Meaning "decline, deteriorate" is c. 1500; that of "to decompose, rot" is from 1570s. Related: Decayed; decaying.
- decay (n.)
- mid-15c., "deterioration, decline in value," from decay (v.). Meaning "gradual decrease in radioactivity" is from 1897.
权威例句
- 1. When not removed, plaque causes tooth decay and gum disease.
- 牙斑如果不清除就会导致牙齿蛀蚀和牙龈疾病。
- 2. There are problems of urban decay and gang violence.
- 存在城市衰败和帮派暴力的问题。
- 3. The phosphate was deposited by the decay of marine microorganisms.
- 海洋微生物腐烂后沉积形成磷酸盐。
- 4. The landlord had let the building fall into decay .
- 房东不管，房子已经破烂不堪。
- 5. The decay of the meat could have been prevented by proper refrigeration.
- 如果经过适当的冷藏,这些肉本来不至于腐烂掉.
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