about time
US /əˈbaʊt taɪm/
UK /əˈbaʊt taɪm/

成语
1.
早该如此, 是时候了
used to say that something should have happened sooner or a long time ago
示例:
•
It's about time you cleaned your room!
你早该打扫房间了!
•
The train is finally here. About time!
火车终于来了。早该如此!
在 Lingoland 学习这个单词