back in
US /bæk ɪn/
UK /bæk ɪn/
副词
1.
回到, 恢复
returned to a place or position
示例:
•
He's finally back in the office after his vacation.
他休假后终于回到办公室了。
•
The old system is back in place.
旧系统恢复了。
2.
在, 在...时期
referring to a past time or period
示例:
•
Back in the 90s, things were very different.
在90年代，情况大不相同。
•
I remember that from back in my school days.
我记得那是在我上学的时候。