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 people using social media has increased significantly over the past decade.
过去十年里，人们使用社交媒体的频率显著增加。
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3. The frequency of rainfall varies greatly from year to year.
降雨的频率每年变化很大。