| 释义 |
retroactive
UK [ˌret.rəʊ'æk.tɪv] US [-roʊ-] (also retrospective) formal
adjective
■If a law or decision, etc. is retroactive, it has effect from a date before it was approved 有追溯效力的；溯及既往的•the first British law to have retroactive effect第一部有追溯效力的英国法律 |