pol.lu.tion
n.(名词)The act or process of polluting or the state of being polluted, especially the contamination of soil, water, or the atmosphere by the discharge of harmful substances.污染:造成污染的行为或过程或被污染的状态,尤指因为排放有害物质而造成的对土壤、水或大气的污染Something that pollutes; a pollutant or a group of pollutants:污染,污染物:造成污染的东西;一种或一组污染性物质:例句:Pollution in the air reduced the visibility near the airport.空气中的污染降低了机场附近的能见度