Retroactivity
n. 追溯既往\\n[法] 溯及既往, 追溯效力
🗣️ 情景例句
Are you a resident of Shanghai?
你是上海市居民吗？
What time do you finish your work?
你什么时候下班？
The disadvantage with carrying out interviews is that it may take a long time.
走访用户的不利之处是它需要很长的时间。