cost可數(shù)嗎

　　The first priority is to cut costs.

　　首要任務是削減費用。

　　Costs are always rising.

　　費用總是不斷地增加。

　　Costs overran the budget by about 30%.

　　花費超出了預算約30％。

　　The house costs a fortune to maintain.

　　維修這房子花費巨大。

　　The costs have increased substantially.

　　成本大大提高了。