Retroact
vi. 反动, 起反作用, 溯及既往\\n[法] 追溯既往, 有追溯效力, 反动
✅ 同义词
🗣️ 情景例句
Excuse me.
请原谅。
Two sparrows on one ear of corn make an ill agreement.
一穗两雀争，意见乱纷纷。
Even if a piped water supply is safe at its source,
既使管道供水系统在水源处是安全的，