Collins Chinese Dictionary Plus (3rd edition), 2011:
decay [dɪˈkeɪ]
I vi
1
(=rot)
[body, leaves, teeth] 腐烂(爛) fǔlàn
[body, leaves, teeth] 腐烂(爛) fǔlàn
2
[society, system etc] 腐朽 fǔxiǔ
II n
[u]
1
[of body, tooth] 腐烂(爛) fǔlàn
2
[of society, system etc] 腐朽 fǔxiǔ
在这些条目还发现'decayed':
在英文解释里: