收旧利废

jiǎ rú wǒ men gèng duō de shōu jiù lì fèi wǒ men jiù bù bì shēng chǎn zhè me duō yě jiù bù huì yǒu zhè me yán zhòng de wū rǎn

假如我们更多地收旧利废，我们就不必生产这么多，也就不会有这么严重的污染。

If we recycled more waste, we wouldn't need to produce so much and there wouldn't be so much pollution.