vehicle exhaust gas

• 汽车尾气

vehicle exhaust gas的用法和样例：

例句

1. The exhaust gas from cars pollutes the air and they waste energy.
   事实上，汽车尾气污染了空气，浪费能源。
2. New regulations are aimed at reducing the vehicle emission.
   新规定的目的是要降低汽车尾气的排放。