单词 | retroactive |
释义 | Word Frequency retroactive(ˌrɛtrəʊˈæktɪv) adjective 1. applying or referring to the past retroactive legislation 2. effective or operative from a date or for a period in the past Derived forms retroactively (ˌretroˈactively) adverb retroactiveness (ˌretroˈactiveness) or retroactivity (ˌretroacˈtivity) noun |
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