相关单词近义词 pollutant 污染物质, impurity 不纯, toxin 毒素, poison 毒药, waste product 废品, chemical 化学的, alloy 合金, contamination 污染临近词cont, Contai相似词container, container ship, containerize, containment, contaminate, contd, contemplate, contemplation, 返回 contaminant