day in day out
US /deɪ ɪn deɪ aʊt/
UK /deɪ ɪn deɪ aʊt/
1.
日复一日, 每天
continuously or repeatedly over a long period of time
:
•
He does the same boring job day in day out.
他日复一日地做着同样无聊的工作。
•
The factory produces thousands of units day in day out.
这家工厂日复一日地生产数千件产品。