plumbing

管路系统、水管装置、配管

The old house needs new wiring and plumbing before we move in.

这栋老房子在我们搬进去前得换新的电线和管路系统。

水电工作、配管业

He learned plumbing from his father and now runs his own business.

他跟父亲学水电，现在自己开业。

探究、深入探索plumb 的现在分词

The documentary keeps plumbing the depths of human cruelty.

这部纪录片不断深入探究人性残酷的一面。