[wū rǎn]
pollute; contaminate
atmosphere pollution
大气层污染
moral pollution
道德污染
underground (water) pollution
地下(水)污染
radioactive contamination
放射性污染
industrial pollution
工业污染
industrial dust pollution
工业粉尘污染
chemical pollution
化学污染
environmental pollution
环境污染
spiritual contamination
精神污染
air pollution
空气污染
floating dust pollution; airborne dust pollution
飘尘污染
water contamination
水污染
noise pollution
噪音污染
debase the standards of social conduct
污染社会风气
Soot fouls the air.
烟屑污染空气。