同时用水效率低，水浪费和水污染现象严重，这主要是由不合理的水价所致。
Water is used in low efficiency. Serious water waste and water pollution are mainly caused by unreasonable price.
造成我国部分地区水源供给不足和全国水环境普遍污染的重要原因是用水效率低和污水排放量大。
The important reason of causing our country source of water supplying insufficient and national water environment pollution in some area is low water efficiency and large sewage emission.
中国是水资源严重短缺的国家，水环境污染、用水效率低、用水浪费和管理水平落后是我国水资源管理中存在的主要问题。
China is a country with severe water shortage. The main problems of the water resources management are water pollution, low efficiency of water using, water waste and behind the management level.
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