Buses and cars also produce waste gas.

公共汽车和汽车也产生废气。

Waste gas of cars breeds air pollution .

汽车的尾气造成空气污染。

Cars pollute the air in the form of waste gas.

汽车以排出废气的形式污染空气。

Filtering protection waste gas exhaustion system.

过载保护功能，废气抽风系统。

Gil is a keen observer, "I watch people drive and waste gas every day."

吉尔是个非常敏锐的观察者，“我每天都会看着人们开车并且浪费汽油。”