- 1溯及既往
A law or a decision is retroactive when it does not only begin today — it reaches back and also covers a time in the past. If a new rule is retroactive to 1 January, that past date is treated as the real start, even though the rule was written later. This is a formal word from law, tax, pay, and school or company rules. People argue about it because it can feel unfair: you followed the old rule, and now a new rule looks back and judges those days. Though actually, a retroactive change is not always bad news — a pay rise that is retroactive means you also get the extra money for months you have already worked.
組成retro- (back, backward) + active (working, in force). From French rétroactif; first written down in 1610.
同家族的字
- retroactivelythe adverb: in a retroactive way
- activethe second piece: having force, working
- retrospecta look back; both start with retro-, “back”
原始詞典資料1 筆記錄
以下是外部詞典記錄的用法，摘錄並精簡格式，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
retroactiveadj/ˌɹɛt.ɹəʊˈæk.tɪv/
- 1
Extending in scope, effect, application or influence to a prior time or to prior conditions
- Lenin's retroactive view of history was of course nothing in comparison to the systematic falsification of Stalin's day, when it had to be shown at all costs that the current assessment of individuals and political movements was equally valid for all past years.
- Rather, he hoped there was some legal trickeration he could deploy to get a retroactive water right filed and end-run the opposition.
摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。