Definition: damage caused to water, air, etc. by harmful substances or waste Level: B1
空气污染是许多大城市的一个严重问题。
Air ___pollution is a serious problem in many major cities.
我们都应该通过少开车来努力减少污染。
We should all try to reduce ___pollution by using our cars less.
政府宣布了应对环境污染的新计划。
The government announced new plans to tackle environmental ___pollution.
