友情提醒：点击  ，可以收听真人发音
oftenness    添加到生词本 复制网址
英英解释

  • 　1个名词解释

    1. the number of occurrences within a given time period
      [同] frequence, frequency, oftenness
      [例]
      • the frequency of modulation was 40 cycles per second
      • the frequency of his seizures increased as he grew older