HSK 6 · noun · Practice
污水
wastewater; dirty water; sewage
工厂不能把污水排进河里。
Gōngchǎng bù néng bǎ wūshuǐ pái jìn hé lǐ。
Factories must not discharge wastewater into the river.
工厂不能乱排放污水。
Gōngchǎng bùnéng luàn páifàng wūshuǐ.
Factories must not discharge waste water carelessly.