op·er·ate

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【释义】：

vt．❶ 操作，开动：operate amachine开机器．❷ 经营，管理：The company operates thirty odd factories and three mines．这个公司经营三十多个工厂和三大矿山．

－vi．❶ 运转，工作：The machinery operates day and night．机器昼夜运转．❷ 起作用，奏效：The medicine operates quite well．这药真有效．❸ 施手术，开刀：The doctor decided to operate on(or upon)the patient at once．医生决定立即给这位患者动手术．❹ 采取军事行动：operating on a large scale采取大规模的军事行动．❺ 【口语】做股票投机生意．