decay

vt.& vi.（使）腐烂，腐朽

vi.衰败，衰退，衰落

n.腐败、衰退的状态

noun

1. 腐烂；腐朽
   the process or result of being destroyed by natural causes or by not being cared for (= of decaying)
   1. tooth decay
      蛀牙
   2. The landlord had let the building fall into decay .
      房东不管，房子已经破烂不堪。
   3. The smell of death and decay hung over the town.
      城市上空弥漫着死亡和腐烂的气息。
2. （社会、机构、制度等的）衰败，衰退，衰落
   the gradual destruction of a society, an institution, a system, etc.
   1. economic/moral/urban decay
      经济衰退；道德败坏；城市衰落
   2. the decay of the old industries
      旧工业的衰败

verb

1. （使）腐烂，腐朽
   to be destroyed gradually by natural processes; to destroy sth in this way
   1. decaying leaves/teeth/food
      烂叶；蛀齿；腐烂食物
2. （建筑、地方等）破败，衰落，衰败
   if a building or an area decays , its condition slowly becomes worse
   1. decaying inner city areas
      衰败中的旧城区
3. （力量、影响等）衰弱，衰退，衰减
   to become less powerful and lose influence over people, society, etc.
   1. decaying standards of morality
      日趋低下的道德标准

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

现在分词:decaying 过去分词:decayed 第三人称单数:decays 名词复数形式:decays 过去式:decayed

decay 腐烂

de-, 向下。-cay, 同-cad, 掉落，词源同case, accident. 引申义腐烂。

1. Jacobsen based his conclusion on an analysis of the decay of samarium-147 into neodymium-143.
   雅各布森得出的结论是基于对钐-147衰变成钕-143所作的分析。
2. The bodies buried in the fine ash slowly decayed
   埋在灰烬里的尸体慢慢地腐烂了。
3. The ground was scattered with decaying leaves.
   地上满是腐败的落叶。
4. Popular cinema seems to have decayed
   大众电影似乎已经衰落了。
5. Congress has tried dozens of approaches to revitalize decaying urban and rural areas.
   国会已试行过数十种方法来重振正在走向衰败的城乡地区。
6. 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。
7. Buildings are left to decay at the mercy of vandals and the weather
   建筑物因人为的肆意破坏及日晒雨淋而日益破败。
8. Some utensils were in a state of decay when they were unearthed.
   有些器皿在出土时已经残破。
9. Cavities in teeth are caused by decay.
   牙齿上的空洞是由龋蚀造成的。
10. The old civilization was fast falling into decay.
    旧文化很快地衰落下去。
11. Whilst the detoxification requires energy, slow decay may still occur.
    由于解毒作用需要能量，所以缓慢的腐朽仍然会发生。
12. Dull ( dingy) yellow represents caution, decay, sickness, and jealousy.
    暗黄色代表警告、衰落、疾病和嫉妒。
13. The antimuon decay also conserves the total light and heavy lepton numbers.
    在反μ子衰变中，总轻轻子数和总重轻子数也是守恒的。
14. They claimed that the plastics wouldn't decay if they were buried.
    他们声称塑料被埋起来就不会腐烂。
15. This bacterial decay of cellulose also occurs in the gut of most herbivorous animals.
    在很多食草动物的肠内这种纤维素也能被细菌分解。
16. Bacteria sticks to food debris in the teeth, causing decay.
    细菌附着在牙缝中的食物残渣上，导致蛀牙。
17. The newest experimental results of weak interaction constants defined in neutron decay and neutron electrical dipole moment are given.
    列举了中子衰变弱相互作用常数和中子电偶极矩的最近测量结果。
18. Chemistry also uses calculus in determining reaction rates and radioactive decay.
    化学也使用演算在确定反应速率和放射性衰变。
19. The problem of atomic decay in the microcavity is discussed.
    研究了微腔中原子衰变问题。
20. Finally the model of luminescence decay in this phosphor is proposed according to experimental results.
    最后，根据实验结果，提出了这种磷光体发光衰减过程的物理模型。
21. Fluoride also helps teeth damaged from the decay process and breaks down bacteria on teeth.
    氟化物也能帮助牙齿来自腐朽过程的损坏和牙齿中微生物的破坏。
22. The filth and decay of the villages.
    乡村的肮脏和破败。
23. One major problem is tooth decay.
    一个主要的问题是蛀牙。
24. That'll just be related directly to the rate of the decay.
    和衰减的速率有直接关系。
25. The theory of alpha decay utilizes this model.
    α衰变理论用了这种模型。
26. It is known as tooth decay.
    这就形成了龋齿。
27. Cranberries may help prevent tooth decay and cavities, research suggests.
    研究指出，小红莓可助防止蛀牙和蛀洞。
28. The food was beginning to decay.
    食物开始腐烂了。
29. The ageing and decay of things and organisms.
    物体与有机体的老化和衰败。