adj.有追溯力的；可追溯的
This will be retroactive agreement. 这些是追溯以往的合约。
The new law was made retroactive to 1 January. 新法令生效日期可追溯到1 月1 日.
They get a pay rise retroactive to last January. 他们补发了去年一月起的加薪。
And what does he mean by retroactive? 问：追溯是什么意思呢？
Retroactive to when they start to work for me. 追溯到从他们开始为我工作的时候吗?
They receive a pay rise retroactive to last January. 他获得从去年1月份开始补发的增加工资。
adv.逆动地；追溯地；后期补救地，事后补救地
