形容词
中文翻译：偶然的
同义词：
['accidental', 'fortuitous', 'serendipitous例句：1. The discovery of the new species was a coincidental event.（新物种的发现是一个偶然事件。）']
例句：
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1. The discovery of the new species was a coincidental event.
新物种的发现是一个偶然事件。
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2. It was a coincidental meeting that led to our friendship.
一个偶然的相遇让我们成为了朋友。
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3.The coinciding of two events is often due to chance.
两个事件的巧合往往是由于偶然。