Don 't look back. Don' t doubt. Don 't regret.

不要停滞不前，不要怀疑，不要后悔！

youdao

Don 't look back, just haven't found leave your reasons.

不回头，只是还没找到留下的来由。

youdao

Don 't look back, just haven't found leave your reasons.

中文：不回头，只是还没找到留下的理由。

youdao

"As an athlete,you never really look at least I don't I don't look back at the past medals that I've won.

VOA: standard.2010.02.23

I think if we look back, five years from now, it won't be nearly as clear how you separate what those products are.

回顾五年前，这些产品的区分,不像这么明显。

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选

But things don't look as bad as they looked 3 or 5 years back.

但与3或5年前比起来,情况已经缓和很多。

普林斯顿公开课 - 国际座谈会课程节选

He's telling voters, whatever you do don't look back at all those promises I made.

WSJ: Punctuation Nerds Stopped

If that's asking a bit much, just nab the X7i and don't look back.

ENGADGET: IRL: Klipsch Image X7i, Razer BlackShark and BlueAnt's Embrace headphones

However -- and this is pivotal -- Jack doesn't look back when the explosion hits.

CNN: Review: 'John Carpenter's Vampires' stinks worse than garlic