英语翻译

题目

英语翻译
the world is said to have about 3000 times as much groundwater(地下水) as it has in rivers and lakeS,and groundwater is far cleaner.

答案

据说这个世界上地下水量大约是所有河流湖泊水量的3000倍,而且地下水远比其他水更干净.