effluent
n
1 [U, C] (discharge of) liquid waste matter, sewage, etc, eg from a factory into a river 废液、 污水等(的排放)(如从工厂排到河流)
The effluent from the factory makes the river unsafe for swimming. 工厂放出的废水把这条河弄得不能游泳了.
2 [C] stream flowing from a larger stream or from a lake (从河或湖中流出的)支流, 小水流.