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人类文明离不开水。目前地球上可供人类利用的淡水资源非常有限。随着工业化的发展,人类对水资源过度使用,水资源的污染和匮乏已经成为摆在全人类面前的严峻问题。
Human civilization can not do without water. Freshwater resources currently available on Earth for human use are very limited. With the development of industrialization, human over-utilization of water resources and pollution and scarcity of water resources have become serious problems facing all mankind.