您要查找的是不是：
- 先prior
- 费率rate
- 先在preexistence
- 不良率fraction defective
- 容积率volume fraction
- 在先formerly
- 倍率multiplying power
- 笨鸟先飞A slow sparrow should make an early start.
- 电导率electrical conductivity
- 先天的innate
- 市盈率p/e (price/earning) ratio
- 先走foregone
- 报废率scrappage
- 先付prepayment
- 机率probability
- 先试foretaste
- 导率conductance
- 先是before this
- 点击率clicking rate
- 伸长率tensile stretch
