sewage pipes

• 污水管道

sewage pipes的用法和样例：

例句

1. The sewage pipes were choked with rubbish.
   垃圾阻塞了污水管道。
2. We shall have to dig under the river to lay the sewage pipe.
   为了铺设污水管道，我们必须在河床下面开一条通道。