cost

　　The ticket cost me ten dollars.此句中cost用作及物動詞,意為“花費”,這是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用作名詞,意為“價格,成本,費用”,這是它的常用法之二。

　　cost除了以上用法外,還有其它用法。如:

　　① Has this project been costed? (cost用作及物動詞,意為“估價,估計成本”。)

　　② I must get the book at all costs. (at all costs意為“無論如何,不惜任何代價”。)

　　③ She saved him from drowning, but at the cost of her own life. (at the cost of sth.意為“以犧牲某事物為代價”。)

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