Pollution is the process of polluting water, air, or land, especially with poisonous chemicals.
The fine was for the company's pollution of the air near its plants.
公司被罚款是因为其工厂污染了周围的空气。
Recycling also helps control environmental pollution by reducing the need for waste dumps.
回收再利用能够减少对废品站的需求,从而有助于控制环境污染。
Pollution is poisonous or dirty substances that are polluting the water, air, or land somewhere.
emissions , contamination
The level of pollution in the river was falling.
该河流中污染物的水平其时正在下降。