ㄌㄟˇlěiㄐㄧㄣˋjìn

  1. 屢次升官

  2. 一個基數按照等比級數2,4,8,16)​等差級數2,

  3. 5,3,

  4. 5)​遞增

progressive (taxation etc)​
progression, accumulation successive
Progression (S)​, progressiv (Adj)​