The cost in terms of human life was high.
付出了很大的生命代價。
And again, we must think of the cost.
再說，我們必須考慮成本。
Just out of interest, how much did it cost?
我只是好奇問問，這個花了你多少錢？
How much will it cost, more or less?
這個大概得花多少錢？
The total cost to you is 3 000.
你總共要支付3000英鎊。