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n.管道( duct的名词复数 )；槽；输气管；人体或植物中液体等经过的管 英英释义： ductn.a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance"the tear duct was obstructed"同义词：epithelial ductcanalchannela continuous tube formed by a row of elongated
