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- 夫妻间应该偶尔（彼此）对调充当的角色。
Husband and wife should switch roles (with each other) occasionally.
- 她极力掩盖她在此事中充当的角色。
She's very defensive about her part in the affair.
- 执行者通过执行特定的命令或起特定作用而充当他人的代理人的人
A person serving as an agent for another by carrying out specified orders or functions.
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