We can not go back to yesterday once we miss it.

一旦错过了昨天，我们无法再回去。

youdao

Look forward to tomorrow, seize today and look back to yesterday!

展望明天，把握今天，回顾昨天。

youdao

It's no use going back to yesterday, because I was a different person then.

没必要从昨天开始，因为从那以后我已经完全是另一个人啦。

youdao

While rumors of an LTE-enabled iPhone had died down for a little while, they sprung back to life yesterday with a report that just such a device was being tested by carriers.

ENGADGET: Why is LTE equipment being installed in an Apple Store?

And going back to some of the questions yesterday about the President not speaking to the NAACP -- you referred most of those questions to the campaign, and yet President Obama delivered a videotaped message that seemed to have been taped in the White House.

WHITEHOUSE: Press Briefing

Because they seem to be walking a little bit back on what he said to ABC yesterday.

WHITEHOUSE: Press Briefing