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n.污染（作用）；腐败；堕落；沾污 双语释义：n.(名词)[U]污染,弄脏 polluting or being polluted英英释义： pollution[ pə:'lju:ʃən ]n.undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activitiesthe state of being polluted同义词：bef
