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
You bet!
当然!
Did you go to the movies last night?
你昨晚去看电影了吗?
There was no doubt that we were unwelcome visitors.