cost可数吗

　　The first priority is to cut costs.

　　首要任务是削减费用。

　　Costs are always rising.

　　费用总是不断地增加。

　　Costs overran the budget by about 30%.

　　花费超出了预算约30％。

　　The house costs a fortune to maintain.

　　维修这房子花费巨大。

　　The costs have increased substantially.

　　成本大大提高了。