废气 的中文句子和英文句子

在汽车燃烧燃料时，产生废气—一氧化碳。

As motor vehicles burn fuel, they give off carbon monoxide as a waste.


汽车放出的废气在污染我们城市的空气。

Gases from cars are poisoning the air of our cities.


这家工厂一直在排放有毒的废气。

The factory had been sending out toxic fumes.