We already should have known in the past, but now we should not look back.

我们以前就应该明白这点，但是现在我们不能往回看了。

youdao

The letter should look as beautiful as your feelings - a note scrawled in biro on the back of a beer mat is not going to make your Bella go weak at the knees.

情书要看起来要与你所投入的感情一样美丽——用圆珠笔潦草地把信写在啤酒垫背后的话，怎么会使你的那个“她”非你不嫁呢？

youdao

We can turn around, but don't look back, even if one day, you find you are wrong, you should also turn, a big step towards the right direction, not back to blame their own wrong.

我们可以转身，但是不必回头，即使有一天，你发现自己走错了，你也应该转身，大步朝着对的方向去，而不是回头怨自己错了。

youdao

And it is rather remarkable to hear some of the critics out there question Senator Hagel and whether or not he should have this position when you look back at what those very same members of the Senate said effusively in praise of Senator Hagel just a few years ago.

WHITEHOUSE: Press Briefing by Press Secretary Jay Carney,

If the protecting mortgage consumers from being taken advantage of is the mission of the CFPB, then inquiries and hearings should look at why FHA MIP (Mortgage Insurance Premiums), have not been rolled back.

FORBES: The Great And Powerful New Ability-To-Repay Rule