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单词 retroactively
释义

WordReference Random House Learner's Dictionary of American English © 2024
ret•ro•ac•tive /ˌrɛtroʊˈæktɪv/USA pronunciation   adj. 
  1. having effect back in the past, as a new law:a retroactive law that would increase taxes on income earned last year.
  2. effective as of a past date:a pay raise retroactive to last January 1st.
ret•ro•ac•tive•ly, adv.: to be paid extra retroactively.

WordReference Random House Unabridged Dictionary of American English © 2024
ret•ro•ac•tive  (re′trō ak′tiv),USA pronunciation adj. 
  1. operative with respect to past occurrences, as a statute;
    retrospective:a retroactive law.
  2. pertaining to a pay raise effective as of a past date.
  • retro- + active 1605–15
ret′ro•ac′tive•ly, adv. 
ret′ro•ac•tiv′i•ty, n. 
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更新时间：2025/8/1 3:47:10