求翻译：水是生命的源泉，它滋润了万物，哺育了生命。我们赖以生存的地球有百分之七十是被水覆盖着，而其中百分之九十七为海水，与我们生活关系最为密切的淡水呢，只有百分之三，而淡水中又有百分之七十八为冰川淡水，很难利用。因此，我们能利用的淡水资源是十分有限的，并且受到污染的威胁。农业、工业和城市供水需求量不断提高导致了有限的淡水资源更为紧张。为了避免水危机，我们必须保护水资源。是什么意思？

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Water is the source of life, it has nourished everything, nurturing a life. The survival of our planet 70 per cent are covered by water, while 97 per cent of which the amount of sea water, and we live is most closely connected to the freshwater only three per cent, while in the freshwater 78 per cen

The water is the life fountainhead, it has moistened the myriad things, has nurtured the life.我们赖以生存的地球有百分之七十是被水覆盖着，而其中百分之九十七为海水，与我们生活关系最为密切的淡水呢，只有百分之三，而淡水中又有百分之七十八为冰川淡水，很难利用。Therefore, we can the use fresh water resources be extremely limited, and is polluted the threat.The agriculture, the industr

Water is the source of life, it moisten everything, sustains life. We live in 70% of the Earth is covered by water, and 97% of sea water, and our life is most closely related to the freshwater, 3%, and 78% glaciers and fresh water fresh water and difficult to use. Therefore, we can use freshwater re

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