sewage

Passage OneQuestions 46 to 50 are based on the following passage.Facing water shortages and escalating fertilizer costs, farmers in developing countries are using raw sewage(下水道污水)to irrigate and fertilize nearly 49 million acres of cropland, acco

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周五，辽宁大连8名村民疏通污水池时死亡，当地当局称。这起事故于早上8:30发生在旅顺口区。DALIANEight villagers died while cleaning a sewage discharge outlet Friday in Dalian, a port city in Northeast China's Liaoning pro