He has compared it with plumbing, pointing out that a plumber doesn't wake up and say that he can't work with pipes today.
他曾拿写作与修管道作比，指出一个管道工不会一觉醒来就说他今天不能修管道了。
My daughter Judy, who works for a plumbing company, found herself in need of a plumber at home.
我女儿朱迪在一家管道公司工作。 一日，她发现自己家里需要一个管道修理工。
The plans show the drains and plumbing fixtures, but the plumber figures out how to route the pipes and hook up to the water main and sewer.
计划指出排水沟和排水管固定装置，而管道工则构想如何布置管道和连接到总水管和下水道。
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