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 w
问题描述：
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.
答
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