喜剧就是你掉进污水道里死了。

Comedy is when you fall in an open sewer and die.

youdao

在雨水沟与污水道分开的地方，街道雨水没经过处理并携带各种各样的废物，其中包括一些有机的和有毒的废品流人承接河道。

Where storm sewers are separated from sanitary sewers, runoff enters receiving waters untreated and can carry a variety of wastes, including organic and toxic wastes.

youdao

那样做不会冲走全部的污水，但应该能疏通一下发臭的下水道。

That won't flush out all the sewage, but it should unclog some stinking drains.

《柯林斯英汉双解大词典》