adj.腐败的；被蛀的
动词decay的过去式和过去分词形式.
The restaurant was soon stinking with the decayed fish. 那家饭馆很快就充满了臭鱼的气味。
Dry, decayed wood, used as tinder. 用作引火物的干朽木
The dampness of the climate decayed the books. 气候潮湿，把书都霉坏了。
