cost的所有用法.最好有例句,

sth +cost +sb +sth 例：A new computer costs a lot of money.

cost [kɔst]
n.
1. 价钱，价格；代价；费用；成本2. 牺牲，损失3. 支出，花费，开支4. [用复数]【法律】诉讼费(尤指判处败方偿付胜方的诉讼费用)
vt.
1. 花费；价格为；值：例句: It must cost a good deal to live here.
住在这里一定要花很多钱的。2. 使付出；使损失，使失去：例句: Careless driving cost him his life.
开车不小心使他丧了命。3. 需(努力)；费(事)：例句: Courtesy costs little and means much.
礼貌不费事，意义却很大。4. costed, costing 估计…的成本：例句: The work was costed by the engineer at $50,000.
这项工程据工程师估价为50 000美元。
vi.
1. 估计成本：例句: We want a man who must be able to cost.
我们需要一个能计算成本的人。2. 需要花费，需要付出高昂代价：例句: The furniture in the living room really costs.
起居室里的这套家具真花了不少钱。
短语
1. at all costs不惜任何代价，无论如何2. at any cost=at all costs3. at cost按原价，照成本4. at the cost of以…为代价5. cost someone dear (或 dearly)使某人付出沉重代价，使某人大受损失6. cost what it may不惜任何代价，无论如何7. count the cost(做事前)权衡利害得失；估计不利条件8. to one's cost吃了苦头之后才…，由于付了代价才…
变形:

vt.cost或costedcosting
以上来源于: 《21世纪大英汉词典》

cost的主语是物或某种活动, 还可以表示“值”, 常见用法如下：(1)sth. costs (sb.) ＋金钱,某物花了（某人）多少钱.例：A new computer costs a lot of money. 买一台新电脑要花一大笔钱.(2) (doing) sth. costs (sb...