frequency
/ˈfriːkwənsi/
n.
一句话记住
频率;频繁发生
释义与例句
n.
频率;频繁发生
the number of times something happens within a particular period, or the fact of happening often
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The frequency of extreme weather events has increased in recent decades.
近几十年来,极端天气事件的发生频率有所增加。
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This radio station broadcasts on a frequency of 98.5 megahertz.
这家广播电台以 98.5 兆赫的频率播音。
展开其余 1 条例句
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Trains are running with increasing frequency during the morning peak.
早高峰期间,列车的发车班次越来越频繁。
词源与构词
记忆钩子
the frequency of 后接发生的事情;表示频率高低用 high/low frequency,不用 big/small frequency。
词族与关联词
词族(同一词根派生出的不同词性或形式)
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frequent 频繁的;经常发生的形容词,常修饰 visits、changes、flights 等,表示发生次数多。
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frequently 频繁地;经常副词,位置接近 often,但语气通常稍正式。
易混词(形近或义近,注意区别)
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rate 比率;速度;率frequency 指某事在单位时间内发生的次数,也指声波、电波等的频率;rate 常指一个量相对于另一个量的比率或变化速度,如 unemployment rate、heart rate。谈公交车发车频繁程度用 frequency,谈心率用 heart rate。The city has a higher rate of unemployment than the national average. 这座城市的失业率高于全国平均水平。
常见搭配
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high frequency 高频率;频繁The device emits sound at a very high frequency. 该设备发出频率很高的声音。
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the frequency of ……的频率The questionnaire asks about the frequency of exercise. 问卷询问锻炼的频率。
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with increasing frequency 越来越频繁地Such incidents are being reported with increasing frequency. 此类事件被报告得越来越频繁。