The domestic sewage discharge is the important source of non-point pollution in rural area.
农村生活污水是农村面源污染的重要来源。
Rural domestic sewage should bear prime responsibility for the water pollution in rural area.
农村生活污水是造成农村水环境污染的主要原因。
Rural domestic sewage should bear prime responsibility for the water pollution in rural area.
农村生活污水是造成农村水环境污染的主要原因。
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