名词
中文翻译：频率
同义词：
['rate', 'recurrence', 'occurrence']
例句：
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1.The frequency of earthquakes in this area is relatively high.
这个地区的地震频率相对较高。
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2.The frequency of traffic accidents has decreased significantly since the implementation of the new safety regulations.
自从实施了新的安全规定以来，交通事故的频率已经显著下降。
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3.The frequency of occurrence of this disease varies greatly between different populations.
这种疾病在不同人群中的发生率差异很大。