[mass noun]liquid waste or sewage discharged into a river or the sea 废水,污水 industrial effluent. 工业废水。 [count noun]contamination with trade effluents. 商业废水的污染。
语源
late Middle English (in the adjective sense 'flowing out'): from Latin effluent- 'flowing out', from the verb effluere (see effluence). The noun dates from the mid 19th cent