cost的過去式過去分詞現(xiàn)在分詞詞義

　　例句：

　　It cost him five hundred quid.

　　它花費了他500英磅。

　　Success has cost him dearly.

　　他為成功付出了高昂的代價。

　　The cost ran into the thousands.

　　成本達到千位數(shù)。

　　Here is a detailed costing of our proposals.

　　這是我們的`方案的詳細成本計算。

　　It was costing us more than it was worth.

　　它讓我們付出的代價超過了它的價值。