道路通、下水通最容易理解，通常下水管道就铺设在道路下面，所以只要道路通了，下水就通了。

It is easy to understand the meaning of accesses to roads and drainage pipe. Drainage pipe often lays under two side of roads, so it is finished when roads is completed.

youdao

道路通、下水通最容易理解，通常下水管道就铺设在道路下面，所以只要道路通了，下水就通了。

It is easy to understand the meaning of accesses to roads and drainage pipe. Drainage pipe often lays under two side of roads, so it is finished when roads is completed.

youdao