reciprocated
用法要点
句型搭配
常用于被动语态或完成时态，表示动作已完成或被完成，强调相互性或回应性。
介词用法
常与介词 by 或 with 连用，表示被谁回报或用何物回报，by 引出动作执行者，with 引出回报内容。
语域说明
适用于正式和中性语境，如书面语、商务交流或日常对话，较少用于非常口语化的场合。
基础例句
She smiled at him, and he reciprocated with a friendly wave.
她对他微笑，他以友好的挥手作为回应。
I helped her move, and she reciprocated by cooking me dinner.
我帮她搬家，她以请我吃晚饭作为回报。
His kindness was not reciprocated, which made him feel disappointed.
他的善意没有得到回报，这让他感到失望。
高级例句
In the negotiation, the concessions were reciprocated by both parties to reach an agreement.
在谈判中，双方互作让步以达成协议。
The research funding was reciprocated with detailed progress reports submitted quarterly.
研究资金得到了季度详细进展报告的回报。
Reciprocated motions in the engine ensure efficient power transmission under high loads.
发动机中的往复运动确保在高负荷下高效传递动力。
高频搭配
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常见错误
错误使用了介词 by，应改为 with，因为 with 表示用某物作为回报，而 by 通常引出动作执行者。
错误添加了介词 to，reciprocate 是及物动词，直接接宾语，不需要额外介词。
近义词辨析
returned
returned 更通用，指归还或返回某物，不一定强调情感或互惠；reciprocated 特指在情感、行为上对等回应，更具相互性。
He returned the book to the library. (中性归还) vs. He reciprocated her affection with a hug. (情感回应)
repaid
repaid 常指偿还债务或回报恩惠，更具体于物质或义务；reciprocated 范围更广，可包括情感、姿态等无形回报。
She repaid the loan on time. (财务偿还) vs. She reciprocated his kindness by helping him. (善意回报)