Retroactivity
n. 追溯既往\\n[法] 溯及既往, 追溯效力
🗣️ 情景例句
This couple treats their adopted child as their own.
这对夫妇把他们的养子视如己出。
Alice, standing tearfully on the platform.
艾丽丝两眼汪汪地站在站台上。
Bottoms up!
干杯（见底）！