短语
中文翻译：Unknown
同义词：
['for a consideration', 'for a price', 'in return']
例句：
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1. Heoffered to give me a ride if Icould find him a new car.
他提出如果我能帮他找到一辆新车，他就让我搭车。
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2. She agreed to help mewith my homework in exchange for a dessert.
她同意帮我做作业作为交换，我请她吃甜点。
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3. The companyoffered a discount in exchange for early payment.
公司提供折扣作为提前付款的交换条件。