动词短语
中文翻译：Unknown
同义词：
['arrive unexpectedly', 'chance upon', 'bump into']
例句：
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1. He had no idea that she would descend on him unexpectedly at the party.
他完全没想到她会在聚会上突然出现。
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2. They chanced upon each other in a crowded street.
他们在一条拥挤的街道上偶然相遇。
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3. The old couple had a sudden reunion when they bumped into each other at the airport.
这对老夫妇在机场偶然相遇后突然团聚了。