retroactive

形容词

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.

   新的税务规定追溯至一月一日起生效。

2. 2

   回溯的、补发的多指薪资、福利

   Employees will receive a retroactive pay raise covering six months.

   员工将获得回溯六个月的加薪补发。

3. 3

   事后的、追认的

   The committee gave retroactive approval to the emergency purchase.

   委员会对这笔紧急采购给予事后追认。