plumbing
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plumbing
n. 管道装置；铅管工行业sp.动词plumb的现在分词.plumbing Noun utility consisting of the pipes and fixtures for the distribution of water or gas in a building and for the disposal of sewage the occupation of a plumber...
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plumb
v.探索; 钻研; 探究adv.恰恰; 正好; 完全; 彻底 过去分词：plumbed现在分词：plumbing过去式：plumbed第三人称单数：plumbs复数：plumbs 牛津词典 verb 探索；钻研；探究to try to understand or succeed in understanding sth mysteriousShe spent her life plumbing...