decayde•cay /dɪ'keɪ/

vt 使腐朽；使腐烂；腐蚀

• Sugar can decay the teeth. 糖会腐蚀牙齿。

vi

1. 腐烂

• The cabbages had already started to decay. 白菜已开始腐烂了。

2. [常用进行式] 没落

• The hotel is now decaying after years of neglect. 几年来这家旅店备受冷落，日渐衰败。

3. [常用进行式] (传统等)过时

• The moral authority of the party was decaying. 该党正在失去道义上的权威地位。