It would be a good idea to call before we leave.

我们出发之前打个电话是个好主意。

《牛津词典》

There should be plenty of time to go shopping before we leave New York.

我们离开纽约前还应该有充足的时间去逛商店。

《牛津词典》

You are not going to do all those dishes before we leave, are you?

你不会在我们走之前把所有那些盘子都洗了吧？

youdao

"Wouldn't you like to go meet Missus Trotter once before we leave?"

VOA: special.2010.04.24

All right, a couple of closing points before we leave this, things I would like you to remember.

好了，我们讲完之前再总结一下，我希望你们能记住的要点。

麻省理工公开课 - 计算机科学及编程导论课程节选

Before we leave this story and move onto Cain and Abel I just want to make a couple of quick observations.

在我们开始该隐和亚伯之前,我想做个简短的评论。

耶鲁公开课 - 旧约导论课程节选

They believe that it's just a matter of time before we leave so they can implement their strategies.

CNN: Bush transcript, part 2: How Rumsfeld move was made

So if you guys need to eat before we leave, try it out.

WHITEHOUSE: Small Business Roundtable

And I need to get your autograph before we leave.

NPR: Is Palin A Drag On McCain's Campaign?