Every day the chimneys of factories pour a large volume of smoke to the air to pollute it.
工厂的烟囱每天把大量的烟雾排放到空气中去,造成空气污染。
I feel it is our duty not to pollute our environment.
我感觉我们有责任不污染我们的环境。
Many things pollute water, such as tires, trash, and plastic bags.
很多东西使水污染,例如轮胎、垃圾和塑胶袋。