工厂要负责控制废气排放。

Gōngchǎng yào fùzé kòngzhì fèiqì páifàng.

Factories are responsible for controlling air emissions.

汽车的尾气排放对环境有害。

Qìchē de wěiqì páifàng duì huánjìng yǒuhài.

The exhaust emissions from cars are harmful to the environment.

电厂应该采取措施减少二氧化碳排放。

Diànchǎng yīnggāi cǎiqǔ cuòshī jiǎnshǎo èryǎnghuàtàn páifàng.

Power plants should take measures to reduce carbon dioxide emissions.