vt.& vi.（使）腐烂，腐朽；vi.衰败，衰退，衰落；n.腐败、衰退的状态； 变形： 过去式：decayed过去分词：decayed现在分词：decaying第三人称单数：decays 双语释义：n.(名词)[U]腐烂；腐朽 the process or result of being destroyed by natural causes or by not being cared for[U](社会、机构、制度等的)衰败，衰退 the gradual destruction of a societ