zhè / xiē / mò / xiè / bù / néng / zhí / jiē / dào / jìn / hé / lǐ / bì / xū / jí / zhōng / chǔ / lǐ

这些末屑不能直接倒进河里，必须集中处理。

These scraps must not be dumped directly into the river; they must be collected for treatment.