Retroactivity
n. 追溯既往\\n[法] 溯及既往, 追溯效力
🗣️ 情景例句
Do you know where the nearest post office is?
你知道最近的邮局在哪儿吗？
Only by working hard can we succeed in doing anything.
只有通过努力工作我们才能成功。
It is becoming harder and harder to find a job.
现在找工作是越来越难了。