动词短语
中文翻译：参加
同义词：
['participate', 'join', 'be involved in']
例句：
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1.She came in on the conversation by accident.
她偶然加入了谈话。
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2. The new project requires all team members to come in on the planning stage.
新项目需要所有团队成员都参与规划阶段。
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3. He decided to come in on the sale of the house after the auction.
拍卖结束后，他决定参与房屋的销售。