translation.en: Google has to reveal how much they spend, in general, and that lets you put some caps on how many data centers could they be building, because a big data center costs a certain amount of money.
translation.zh: 谷歌透露了他们的总支出 那就可以估计 他们可以建立多少个数据中心 因为大的中心需要一定数额的预算