v. 从事,参加,保证,约束,束缚,雇用,聘请,预定,允诺,约定,订婚
P. ～in a lawsuit进行诉讼,打官司

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～in arbitrage提交仲裁

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～in both export and import business 从事（经营）进出口业务

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～in conspiratorial activities从事阴谋活动

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～in diverse economic undertakings从事多种经营

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～in export从事出口贸易

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～in malpractice to selfish ends 进行营私舞弊

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～in professional missions执行专业任务

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～in speculation从事投机

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～in speculation and profiteering 从事投机牟利活动

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～with order执行各项订单