No matter what setbacks we meet, we can't go back now.

无论受到什么挫折，我们都不会退缩。

youdao

I can't go back and end this now.

我现在不能回去并结束这一切了。

youdao

If you get it in your mind that the relationship is currently over. You can't go back in time, though you probably wish you could. Concentrate on what is going on now.

如果你意识到你们的关系已经完全结束了，尽管你奢望时光能够倒流，一切却再也无法回到过去，那么就专注于眼前吧。

youdao

And what we can't do now is go back to the policies that got us into so many of the problems that we've been dealing with in the first place.

CNN: Obama adds politics to women's forum

With GE shares 28% lower now, Immelt can't go back to the equity market for more money.

FORBES: Companies, People, Ideas

Regardless, the world can go back to spinning on its axis now that we know the U.S. won't be beating out our Japanese counterparts in advanced telecommunications deployment anytime soon.

ENGADGET: Cingular to delay HSDPA network rollout