Principle of retroactivity
[法] 溯及既往原则
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
n. 追溯既往\\n[法] 溯及既往, 追溯效力
🗣️ 情景例句
Presents--for me?
礼物你给我的？
What's the basis of your belief that the product is safe?
你凭什么相信产品是安全的？
I will have to choose presents for all the family soon, but I haven't chosen any yet!
我很快就要为每一位家庭成员选购礼物，但我至今还什么也没买！