decay
[di'kei]
v.(使)衰退, (使)腐败,腐烂
n.衰退, 腐败,腐烂
例句与用法：
The dentist could detect no decay in her teeth.
牙医检查了她的牙，未见有龋齿。
A source of spreading corruption or decay.
腐败的原因传布腐败或腐朽的根源
Death and decay of body tissue, often occurring in a limb, caused by insufficient blood supply and usually following injury or disease.
坏疽软组织坏死或衰退，经常由供血不足和紧接着的受伤或疾病而发生在四肢
What made the Roman Empire decay?
罗马帝国为何衰亡？
The dampness of the climate decayed the books.
气候潮湿，把书都霉坏了。
词形变化：
名词: decayer | 动词过去式: decayed | 动词过去分词: decayed | 动词现在分词: decaying | 动词第三人称单数: decays |
详细释义：
vi.
1. 腐朽, 腐烂; 蛀蚀
Sweet potatoes decayed after the frost.
霜下了之后, 红薯烂掉了。
2. 衰败; 衰退
The Turkish Empire decayed in the nineteenth century.
土耳其帝国在十九世纪时衰落。
vt.
1. 使腐朽, 使腐烂
2. 使(牙齿)蛀坏
Sweets can decay the teeth.
糖果会蛀蚀牙齿。
n.[U]
1. 腐朽, 腐烂; 蛀牙
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。
2. 衰败; 衰退
His mental decay is distressing.
他的智力衰退令人苦恼。
3. (放射性物质的)蜕变
4. 人造卫星重返大气层的日期