Graduates now want to be plumbers.

所以现在的毕业生都想当水管工。

The plumbers at work are friends of ours.

正在工作的管子工人是我们的朋友。

At the farm, the plumbers are busy at work.

管子工们在农场里忙着干活。

Plumbers charge by the hour for their work.

水管工人的工作是以小时收费的。

The plumbers blocked off the gas pipe to check escapes.

管道工堵住了煤气管道以制止泄漏。