| 单词 | plumber | 
| 释义 | plumb·er   (plŭmər) n. 1.  One that installs and repairs pipes and plumbing. 2.  Slang   An employee assigned to investigate and stop leaks of sensitive information. [Middle English plummer, from Old French plomier, from Latin plumbārius, lead worker, from Latin plumbum, lead.] | 
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