| 释义 |
de·cay /dɪˈkeɪ/ vi. | vt. | n.
I ❶ vi.
1. 腐烂，腐朽，腐败
vegetables that are decaying 腐烂中的蔬菜
His teeth have begun to decay. 他的牙齿已开始朽蚀。
2. 衰败，衰弱，衰退，衰落
Our powers decay in old age. 我们的体力在年老时衰退。
At that time, the Roman Empire had already decayed. 罗马帝国在那时已经衰亡。
3. 【物】(放射性物质等)衰减，衰变
4. 【空】(运行中的人造卫星)能量消减
❷ vt.
1. 使腐烂，使腐朽，使腐败
Sugar can decay the teeth. 糖会腐蚀牙齿。
2. 〈废〉使衰退，使衰弱
II n.
1. 腐烂，腐朽，腐败
the decay of the meat 肉的腐败
2. 衰败，衰退
signs of mental decay 智力衰退的迹象
the decay of international relations 国际关系的恶化
3. 衰败(或衰退、腐烂)状态
That university has fallen into decay in the last 100 years. 那所大学在过去的100年中已败落。
The house is in decay. 房子已破损不堪。
4. 腐烂组织，腐烂部分
The dentist drilled out the decay. 牙医用牙钻除去牙齿的腐蚀部分。
5. 【物】衰减，衰变
6. 【空】(人造卫星的)能量消减
7. 〈废〉破坏，毁灭；死亡；肺结核
[<OFr decaïr < LL dēcadere to fall away < L cadere to fall] |