Automobile exhaust make water pollution.

汽车尾气的排放污染了水。

Automobile exhaust is a major factor in pollution.

汽车尾气也是污染的重要因素。

Main source: coal-fired power plants and automobile exhaust.

主要来源：汽车尾气和燃煤发电厂。

The strong fumes of the automobile exhaust nearly choked him.

汽车排的强烈臭气几乎使他窒息。

Automobile exhaust fumes are one of the major caueses of smog.

汽车排出的烟是造成烟雾的主要原因之一。