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cost The ticket cost me ten dollars.此句中cost用作及物动词,意为花费,这是cost的常用法之一。 The cost of living is much higher now than it was two years ago. 此句中cost用作名词,意为价格,成本,费用,这是它的常用法之二。 cost除了以上用法外,还有其它用法。如: ① Has this project been costed? (cost用作及物动词,意为估价,估计成本。) ② I must get the book at all costs. (at all costs意为无论如何,不惜任何代价。) ③ She saved him from drowning, but at the cost of her own life. (at the cost of sth.意为以牺牲某事物为代价。) | 
