动词
中文翻译：偶然遇见
同义词：
['meet by chance', 'come across unexpectedly']
例句：
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1. We happened to meet at the cafe this morning.
我们今天早上偶然在咖啡馆遇到了。
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2. She said she'd met him on the street and didn't recognize him.
她说她在街上碰到了他，认不出他。
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3. They happened to be in the same place at the same time.
他们恰好在同一时间出现在了同一个地方。