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    精英家教网 > 高中英语 > 题目详情

    【题目】这种产品的生产成本下降了三分之一。
    The production cost of this product was .

    【答案】reduced；y；a；third
    【解析】reduce by固定短语，”降低了“；a third”三分之一“，因此答案为reduced，by，a，third。

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