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IELTS BNC: 2406 COCA: 3009
frequency
noun /ˈfriːkwənsi/
singularfrequency
pluralfrequencies
  1. 1
    [U] the number of times that something happens during a period of time (某事发生的)频率
    frequency of :

    Changes in sea temperature will increase the frequency of hurricanes. 海水温度的变化会增加飓风的频率。

    with increasing frequency (=more often) 更加频繁地 :

    Accidents occur here with increasing frequency. 这里事故发生得越来越频繁。

     Synonyms and related words
    General words relating to frequency and duration: frequency, rate, irregularity...
    1. a.
      the number of instances of something (某种情况发生的)次数
      frequency of :

      We hope this treatment will reduce the frequency of heart disease. 我们希望这种治疗会减少心脏病的发病率。

      high/low frequency :

      Words with higher frequency are likely to have more complex behaviour. 使用频率更高的词汇可能具有更加复杂的变化。

       Synonyms and related words
      General words relating to frequency and duration: frequency, rate, irregularity...
    2. b.
      used for saying that something happens a lot 频繁

      We became suspicious of the frequency and size of his bank withdrawals. 我们对他从银行取款的次数之多、数额之大产生了怀疑。

       Synonyms and related words
      General words relating to frequency and duration: frequency, rate, irregularity...
  2. 2
    [C/U] physics the rate at which a sound wave, light wave, or radio wave vibrates (=moves up and down) (声波、光波或无线电波的)频率

    a frequency of 7.5 MHz 7.5兆赫的频率

     Synonyms and related words
    Television and radio waves: airwaves, frequency, hertz...
    1. a.
      the wavelength on which a radio programme is broadcast (广播节目播放的)波长
       Synonyms and related words
      Television and radio waves: airwaves, frequency, hertz...
  3. 3
    linguistics the number of times that a word or expression occurs, for example in a corpus

    an accessible text for young readers with many high-frequency words

     Synonyms and related words
     Synonyms and related words
    General words relating to frequency and duration: frequency, rate, irregularity...

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