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题目
求大神翻译:The world said to have about 3000 times as much underground water as water it has in rivers and lakes,and ground water is fair clean.

提问时间:2020-06-28

答案
据说世界上地下水的容量是河水和湖水水量的三千倍左右,而且地下水是非常干净的
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