You know how much they spent, and they also, say, because they had to contract with the local government to get the power provided, you might know what they made a deal to buy, so you know how much power it takes.
你知道他们的开销 同样 因为他们必须同 所在地的政府签约 来得到能源供应 你会知道他们交易的内容 从而得知消耗了多少能源