exhaust fume

Exhaust fumes from cars are poisoning the air of our cities.

汽车排出的废使我们城市中的空遭受污染。

There are many sources of air pollution; exhaust fumes, for example.

空污染有许多来源, 例如废。

Exhaust fumes made him drowsy and brought on a headache.

废他熏得昏昏沉沉，还引起了头疼。