Day in and day out he went.

一天又一天。

He worked hard day in and day out.

他日复一日地努力工作。

Day in and day out, literally 24 hours a day.

“日复一日，而且基本上一天24小时都是这样。

I will work day in and day out to deliver for you.

我会日复一日地工作，为你们提供服务。

Day in and day out, the ricochet effect keeps them unfocused and unproductive.

日复一日，反弹效应让他们无法集中精力，一事无成。

This is exactly what Marva Collins does day in and day out in school.

这正是Marva Collins每天在学校里做的事。

Day in and day out, I save children, just like you guys, from fires.

日复一日地将像你们这样的孩子从火里救出来。

This transformation requires two things time and small, consistent acts day in and day out.

这种转变需要两样东西：时间和小而持续的行为，日复一日。

He's tired of staring at fish and eating them day in and day out.

看鱼和吃鱼，并不能使他满意。

You really need to remind yourself of this and practice it day in and day out.

你真的需要提醒自己这一点，并日复一日地练习。