用法例句：
The cost should average out at about 6 per person.
費用應該是平均每人約6英鎊。
We estimated it would cost about 5 000.
我們估計要花費大約5000歐元。
That one mistake almost cost him his life.
那一個差錯幾乎使他喪命。
I know it won't cost very much but that's not the point.
我知道那花不了多少錢，但這不是重點。
It cost us nothing to go in.
我們沒花錢就進去了。