retroactive

形容詞

1. 1

   追溯的、溯及既往的、有追溯效力的法律

   The new tax rule is retroactive to the first of January.

   新的稅務規定追溯至一月一日起生效。

2. 2

   回溯的、補發的多指薪資、福利

   Employees will receive a retroactive pay raise covering six months.

   員工將獲得回溯六個月的加薪補發。

3. 3

   事後的、追認的

   The committee gave retroactive approval to the emergency purchase.

   委員會對這筆緊急採購給予事後追認。