5像风一样gg
春芽
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Over the world water resource is being polluted and over-exploited. In China, water is extremely scarce due to a big population. We have only one quarter of the world average water availability per capita. And to make matters worse, the water distribution is quite uneven throughout China and across the year.
Despite the obvious inadequacy of water supply, in many area water is used inefficiently and polluted, causing problems for human health.
1年前
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