decay [dɪˈkeɪ]

以下由轻松背单词网站提供

vi.腐烂，衰落；n.腐烂，腐朽，衰败状态

to ( cause something to) become gradually damaged , worse or less

The vegetables have begun to decay. 那些蔬菜已开始腐烂。
Our powers decay in old age. 我们的体力在老年时就衰退。