1.  rate
2.  ratio
3.  frequency
4.  lead
5.  quotiety

• 1. 率: Rate | ratio | ROI | PD
• 2. 失业率: unemployment rate | Unemployment | rate of unemployment | jobless rate
• 3. 频率: frequency | Hz | GHz

更多释义

• 1.有罪判决率已经下降。
  The rate of convictions has fallen.
  dict.yoduao.com
• 2.非婚生育率正在激增。
  Illegitimacy rates are soaring.
  dict.yoduao.com
• 3.犯罪率正在上升。
  The crime rate is rising.
  dict.yoduao.com

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