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  •   你查询的单词是:costly ([ 'kɔstli ]
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  •   解释: a. 昂贵的
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  •   例子: 1. His costly mistake resulted in severe loss.
       他的严重的错误导致了重大的损失。
    2. That's as much as the output of a costly converter, thirty feet high, really wonderful!
       那等于一座高30英尺造价昂贵的转炉的年产量,真了不起!
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