n water mixed with waste matter
n. 废水
1. Wastewater from factories can harm the environment if not treated properly.
工厂排放的废水如果不经过处理，会对环境造成伤害。
2. Many cities are investing in new systems to recycle wastewater.
许多城市正在投资新系统来回收废水。
3. It is important to reduce the amount of wastewater generated at home.
减少家庭产生的废水量是很重要的。