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  1. retroactive

    • IPA[ˌretrōˈaktiv]

    美式

    • adj.
      (especially of legislation) taking effect from a date in the past
    • 釋義
    • 相關詞

    形容詞

    • 1. (especially of legislation) taking effect from a date in the past a big retroactive tax increase
    • n.
      the tendency of later learning to hinder the memory of previously learned material.

    Oxford Dictionary

    • n.
      the tendency of later learning to hinder the memory of previously learned material.

    Oxford American Dictionary

    • 更多解釋
    • IPA[ˌrɛtrəʊˈaktɪv]

    英式

    • adj.
      (especially of legislation) taking effect from a date in the past: a big retroactive tax increase

    Oxford Dictionary