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
My boss does everything by the book.
我们老板一切照章办事。
Between friends all is common.
朋友之间不分彼此。
Last week, a group of Class 3 students decided to go to the museum in the centre of the town.