exhaust gas from car

例句：

1. 1. The factory has been operatingfor over 30 years and producesa large amount of exhaust gas.
   这家工厂已经运营了30多年，产生了大量的废气。
2. 2. The exhaust gas from the caris harmful to the environment.
   汽车的废气对环境有害。
3. 3. The exhaust gas was releasedinto the air, causing pollution.
   废气被排放到空气中，造成了污染。