•When you buy a new computer, you usually get software included at no extra cost (= for no additional money).买电脑时通常免费附送软体。

•For many parents, two salaries are essential to cover the cost of (= pay for) school fees.对许多家长来说，要支付孩子学费双职薪水必不可少。

•The supermarket chain announced that it was cutting the cost (= reducing the price) of all its fresh and frozen meat.这家连锁超市宣布其所有鲜肉和冷冻肉减价销售。

•It's difficult for most people to cope with the rising cost of (= increasing price of) healthcare.大多数人都难以承受医疗保健费用的上涨。

•I was able to buy the damaged goods at cost (= for only the amount of money needed to produce or get the goods, without any extra money added for profit).我能以成本价买到残损商品。

•We need to cut our advertising costs.我们需要削减广告支出。

•The estimated costs of the building project are well over £1 million.这项建筑工程的成本预算大大超出100万英镑。

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•We were going to paint the house ourselves, but when we considered the cost in time and effort, we decided to get a painter to do it for us.我们本打算自己漆房子，可是考虑到既费时又费力，还是决定请油漆工来做。

•The driver managed not to hit the child who ran in front of his car, but only at the cost of injuring himself.司机避开了在他车前乱跑的小孩，可自己却受了伤。

•She has finally got the job she wanted, but at great personal cost (= she has had to give up other things that were important to her).她最终得到了想要的那份工作，可是个人付出的代价很大。

•It's not worth getting into an argument with Tim, as I learned to my cost (= from my unpleasant experience of having done so).不值得和蒂姆发生争执，因为我已有过教训。

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•Security during the president's visit must be maintained at all costs.要不惜一切代价确保总统在访问期间的安全。

•He wanted her at any cost, even if it meant giving up everything he had.他不惜一切代价要得到她，即使这意味着放弃他自己所拥有的一切。

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•"How much does this book cost (= What is the price of this book) ?" "It costs £25."“这本书多少钱？”“25英镑。”

•[+ two objects] The trip will cost you $1000.这趟旅游要花去你1000美元。

•How carefully did you cost the materials for the new fence and gate?你是如何细算新围栏和大门的材料费用的？

•Has your scheme been properly costed (out) ?你的方案好好计算过成本吗？

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•Drinking and driving costs lives (= can cause accidents in which people die).酒后驾车会付出生命的代价。

•[+ two objects] His affairs cost him his marriage (= his marriage ended because of them).婚外情葬送了他的婚姻。

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•Buying that second-hand car without having it checked by a mechanic first cost us dear.没先请机修工检查就买了那辆二手汽车，这让我们亏了许多钱。

•Later that year he attacked a photographer, an incident that cost him dear.那年底他攻击了一位摄影师，这件事让他付出了巨大代价。

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•I'd love to buy a Rolls-Royce, but they cost an arm and a leg.我倒是想买辆劳斯莱斯，可实在太贵了。

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•It'll cost you to have your roof mended.修理屋顶要花很多钱。