decaying excrement

例句：

1. 1.The stench of decaying excrement filled the air.
   腐烂的排泄物的气味充满了空气。
2. 2. The animal was found in a pile of rotting excrement.
   这只动物被发现在一堆腐烂的排泄物中。
3. 3.The city's sewage system is responsible for the decaying excrement that pollutes the waterways.
   城市的污水处理系统负责处理导致水体污染的腐败排泄物。