1. 有追溯效力的：retrieval 检索 | retroactive 有追溯效力的 | retrofit 改型
2. 反作用的;追溯的：retroactive effect 反馈作用 | retroactive 反作用的;追溯的 | retroarc basin 弧后盆地
3. 反动的：retroaction 反动 | retroactive 反动的 | retroactively 逆动地
4. 倒摄的：retroaction 逆作用 | retroactive 倒摄的 | retroactive amnesia 倒摄遗忘
1. （决定或行为）有追溯效力的
If a decision or action is retroactive, it is intended to take effect from a date in the past.
e.g. There are few precedents for this sort of retroactive legislation.
这种有追溯力的法规鲜有先例。
1. This invalidation shall not have retroactive effect, unless otherwise provided for in the laws of the Region.
2. The move is retroactive to Sunday, the Nationals said in a statement.
3. retroactive是什么意思
3. The agreement is retroactive from Nov 5, two days after the strike began in the downtown area.
4. The government is now facing new calls from lawmakers pressing for payments to be made retroactive to Oct 1 despite its delayed approval.
5. But analysts said the lawmakers could take retroactive measures in the following days to reverse the situation.
6. The bill would give retroactive protection to companies that acted without court permission.
7. The draft does not state whether this absolute novelty requirement would be made retroactive.
8. The duties will be in effect for five years, retroactive to the date of the preliminary ruling.
9. Kristiansen approved child support for Palin retroactive to the day the child was born.
10. \u0039\u0031\u0031\u67E5\u8BE2\u00B7\u82F1\u8BED\u5355\u8BCD
10. Once it is approved, the government will start receiving applications in October retroactive to April.
adj
1. affecting things past
e.g. retroactive tax increase
an ex-post-facto law
retro pay
Synonym: ex post facto retro
2. retroactive
2. descriptive of any event or stimulus or process that has an effect on the effects of events or stimuli or process that occurred previously