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  • This paper discusses two problems: one is how to develop fresh water resources and how to get rid of the shortage of fresh water;

    一是如何开发淡水资源与解决水源不足问题；

    youdao

  • This paper discusses two problems: one is how to develop fresh water resources and how to get rid of the shortage of fresh water;

    一是如何开发淡水资源与解决水源不足问题；

    youdao

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