retroactive
01
追溯的, 溯及既往的
applied or taken effect from a past date or event
例子
The new tax law is retroactive to the beginning of the year.
新税法追溯至年初生效。
Employees received a retroactive salary increase for the past six months.
员工获得了过去六个月的追溯性加薪。
02
追溯的, 有追溯效力的
affecting things past
词汇树
retroactively
retroactive
retro
active
