每年我们要消耗25立方公里的地下水。

We suck up 25 cubic kilometers of buried water per year.

youdao

所以，我们正在谈论的也许是大约合计一百(或五十)万立方公里的冰。

So we're talking about maybe a (half) million cubic kilometers of ice in total.

youdao

所以，我们正在谈论的也许是大约合计一百(或五十)万立方公里的冰。

So we're talking about maybe a (half) million cubic kilometers of ice in total.

youdao