用untreated sewage造句子，“untreated sewage”造句
來源：國語幫 1.53W
The Liujiang River, which is the main source of drinking and industrial water use of the city, suffered from pollution from untreated sewage and rainwater flows.
It is neither sanitary nor safe to discharge untreated sewage into the sea.
day after day, we pour millions of tons of untreated sewage and industrial and agricultural wastes into the world's water systems.
