[with obj.]contaminate (water, air, or a place) with harmful or poisonous substances 污染 the explosion polluted the town with dioxin. 爆炸给这个镇造成了二氧芑污染。 [as adj.]the Mersey is one of Europe's most polluted rivers. 默西河是欧洲污染最严重的河流之一。 ■(figurative)defile; corrupt (喻)玷污,败坏 a society polluted by racism. 被种族主义玷污的社会。