backdate
v [Tn] declare that (sth) is to be regarded as valid from some date in the past 宣布(某事物)自过去某日起即为有效
a pay increase awarded in June and backdated to 1 May 6月份发放的从5月1日算起的增薪.
🗣️ 情景例句
and I'll think of a surprise.
我来想出一个惊喜。
I seldom write a letter.
我很少写信。
Such an experience befell a certain young girl the first time she was traveling alone.