求翻译：多种原因造成的水环境污染及缺水降低了环境自净能力，我国可供利用的干净淡水非常少。尽管国家才用了政策法规、宣传教育、经济杠杆等多方面措施来节水，但由于国民总体素质不高、节水科技与设施落后等原因，我国淡水资源的利用效率远落后于人均淡水资源高得多的发达国家和地区。是什么意思？

A variety of causes of water pollution and water shortages reduce the environmental self-purification capacity, clean freshwater available for use in China is very small. Although the countries with the policies and regulations, publicity and education, economic levers, and many other measures to wa

More than one cause of water pollution, and lack of water reduces the ability to clean the environment, and my use of available clean fresh water is very small. Even though the country is only used by the policies, laws and regulations, public awareness and education, and economic levers, and many o

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Many causes of water pollution and water shortages reduce the net capacity of the environment, very few Chinese clean fresh water is available for use. Although national policies and regulations, education, economic levers, and many other water-saving measures, but due to people's overall quality is

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