1. Sugar can decay the tooth.
    糖会腐蚀牙齿。

1. Sugar can decay the teeth.
    糖能蛀蚀牙。

2. Sweet potatoes decayed after the frost.
    霜下了之后，地瓜烂掉了。

3. The Turkish Empire decayed in the nineteenth century.
    土耳其帝国在十九世纪时衰落。

1. They are figuring out a way to stop the decay of the ancient building.
    他们在想办法阻止这古老建筑的朽坏。

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. (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 tooth decays, 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 institution decays, it gradually becomes weaker or its condition gets worse.

decay的反义词

    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. the organic phenomenon of rotting

    Synonym: decomposition

2. a gradual decrease
    as of stored charge or current

    Synonym: decline

3. the process of gradually becoming inferior

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

    Synonym: radioactive decaydisintegration

5. an inferior state resulting from the process of decaying

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

1. fall into decay or ruin

    e.g. The unoccupied house started to decay

    Synonym: crumbledilapidate

2. lose a stored charge, magnetic flux, or current

    e.g. the particles disintegrated during the nuclear fission process

    Synonym: disintegratedecompose

3. undergo decay or decomposition

    e.g. The body started to decay and needed to be cremated