名词
中文翻译：发生事件
同义词：
['occurrence', 'incidence例句：1. The frequency of accidents has been on the rise in recent years.（近年来，事故的频率一直在上升。）']
例句：
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1. The frequency of accidents has been on the rise in recent years.
近年来，事故的频率一直在上升。
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2. The study found that the occurrence of diseases is closely related to lifestyle.
研究发现，疾病的发生与生活方式密切相关。
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3. The data suggests that the occurrence of this disease is increasing.
数据显示，这种疾病的发生正在增加。