工人们挖了个洞，修补好管道，然后又把洞填平。

The workmen dug a hole, mended the pipe, and then filled the hole in again.

youdao

工人们挖了个洞，修补好管道，然后又把洞。

The workmen dug a hole, mended the pipe, and then filled the hole in again.

youdao

工人们挖了个洞，修补好管道，然后又把洞。

The workmen dug a hole, mended the pipe, and then filled the hole in again.

youdao