1. 衰减，衰减到
2. 腐朽，腐烂，朽
3. 衰弱，衰退，衰落，衰颓，衰败，破败
4. 消瘦，憔悴
5. 凋谢，枯
6. 衰变
7. 使腐朽，使腐烂，使腐坏，使朽坏
8. 使蛀坏，蛀蚀
9. 使衰退，使衰弱

1. 衰退，衰微，衰弱，衰败
2. 蜕变
3. 腐烂，腐朽，朽
4. 人造卫星重返大气层的日期
5. 衰减
6. 【无线电】衰变
7. 分解，瓦解，解体
8. 蛀牙
9. 腐败、衰退的状态

1. [U]腐烂；腐朽 the process or result of being destroyed by natural causes or by not being cared for
2. [U](社会、机构、制度等的)衰败，衰退 the gradual destruction of a society, an institution, a system, etc.

1. vt. & vi. (使)腐烂,(使)腐朽 make or become bad
2. vi. 衰败,衰退,衰落 fall to a lower or worse state;decline

1. the process of gradually becoming inferior

2. a gradual decrease; as of stored charge or current

3. the organic phenomenon of rotting

4. an inferior state resulting from the process of decaying;

   "the corpse was in an advanced state of decay"
   "the house had fallen into a serious state of decay and disrepair"
   

5. the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation

1. lose a stored charge, magnetic flux, or current;

   "the particles disintegrated during the nuclear fission process"
   

2. fall into decay or ruin;

   "The unoccupied house started to decay"
   

3. undergo decay or decomposition;

   "The body started to decay and needed to be cremated"
   

1.(尸体或死去的植物）腐烂，腐朽，腐败;(牙齿）遭蛀蚀
When something such as a dead body, a dead plant, or a toothdecays, it is gradually destroyed by a natural process.

e.g. The bodies buried in the fine ash slowly decayed...
埋在灰烬里的尸体慢慢地腐烂了。
e.g. The ground was scattered with decaying leaves.
地上满是腐败的落叶。

2.(社会、制度、机构等）衰败，衰退，衰落
If something such as a society, system, or institutiondecays, it gradually becomes weaker or its condition gets worse.

e.g. Popular cinema seems to have decayed...
大众电影似乎已经衰落了。
e.g. 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。

1. decay什么意思

1. 衰减：制作时完全采样了钢琴的88个键位,踩踏板和不踩踏板的情况下各录制三种力度,所有的音色完全没有使用LOOP,完全记录了声音的起音(attack),衰减(decay),保持(sustain),释音(release)全过程,因此得到的是一个最真实的三角钢琴的音色!

2. 衰变：从整体上看,EG包括音的起奏(Attack)、 衰变(decay)、持续(Sustain)及释放(Release)四个过程. 首先,从整体上考虑,对于这4种音素在进入时间上作不同的安排,音素1、2与触健同时进入,音素3迟一些进入,音素4更迟一些进入.

3. 腐朽：目前我国尚有相当多的木材由于未经干燥处理或干燥设备落后以及干燥工艺不当等,引起木材产生开裂(check)、变形(distortion)、腐朽(decay)、虫蛀(damagedbyvermin)以及变色(discoloration)等缺陷,造成木材资源的浪费现象十分严重.

4. 衰退：这些新增的酸性成份,协助分解伤疤组织 (scar tissue) 与衰退 (decay) 的部份,为形成澄净剔透 (crystalline) 身体预作准备. 同时,坚果类的油脂也变得更加丰富,尤其是夏威夷豆与椰子更是如此. 蜜拉觉得这些坚果的油脂非常丰富,

1. 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。
2. The decay had not proceeded very far.
   腐烂的还不算厉害。
3. The corpse was preserved from decay by embalming.
   尸体用香料涂抹以防腐烂。
4. Dental decay in children in Britain has almost reached epidemic levels.
   在英国，儿童蛀牙之普遍几乎达到了流行病的程度。
5. Neglect has accelerated this house's decay.
   这栋房子因没有人管理而加快损坏。
6. That university has fallen into decay in the last 50 years.
   那所大学在过去的50年逐渐没落了。
7. The buildings had started to fall into decay.
   建筑物开始衰败。
8. This industry has been in decay for some time.
   这一工业进入衰败期已有一段时间。

1. The cabbages had already started to decay.
   卷心菜已经开始烂了。
2. 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。
3. Facilities built in the 1960s have started to decay.
   建于20世纪60年代的设施开始损坏了。
4. The role of the extended family has been decaying for some time.
   大家庭的作用已开始在一段时间内有所减退。
5. The human world, being what it is, could only decay in the course of time.
   人类的世界，就其现状而言，最终非衰败不可。

1. Pollution has decayed the surface of the stonework on the front of the cathedral.
   污染已腐蚀了教堂前部的石头雕塑。

1. She smelt the unpleasantly sweet smell of decaying meat.
   她闻到了肉类腐烂发出的变质臭味。

• If thy brother bee waxen poore, and fallen in decay with thee.

  出自：Bible (AV): Leviticus

• The decay of our civilization,..a break-down of social structures and..a drying-up of the emotional springs of life.

  出自：R. G. Collingwood

• Ancient..families..decayed..into the humble vale of life.

  出自：Sir W. Scott

• Impoverished widows and spinsters of the middle classes..were officially described as 'decayed gentlewomen'.

  出自：John Gloag

1. decay的基本意思是通过化学变化而“(使)腐烂,(使)腐朽”。可用来比喻因体力、精力、活力或影响力等的丧失而“衰败,衰退,衰落”至一个较原来低或差的状态,此时只用作不及物动词。

rot，decay，decompose

这些动词均有“烂、腐烂”之意。

rot指蔬菜水果或肉类的分解、腐烂。

decay通常指事物（国家或人）由盛转衰。

decompose侧重指动物或植物类物体由于内部组织的分解而导致的腐烂过程。

• ☆ 15世纪晚期进入英语，直接源自古法语的decair，意为烂掉。