形容词
中文翻译：偶然的
同义词：
['accidental', 'incidental']
例句：
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1.The incidental discovery of a new species is often the result of serendipity.
偶然发现一个新物种往往是巧合的结果。
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2. The incidental mention of the topic in the meeting was not expected.
会议中偶然提到这个话题是出乎意料的。
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3. The incidental mention of the topic in the meeting was not expected.
会议中偶然提到这个话题是出乎意料的。