Must we wait till the crane arrives before we start loading?

非要等起重机来了才能装运吗？

《新英汉大辞典》

We want to know before we start.

我们想在工程开始之前就对其后果有所预计。

youdao

B: Right.We need a plan before we start.

对，我们动身前应该作计划。

youdao

They say we should drink water even before we start to feel like we need something to drink.

VOA: special.2010.07.27

All right. So before we start in with today's notes, I do want to mention that this morning the Nobel Prize in chemistry was announced.

好的，在开始今天的课之前，我要说一下今天早上,公布了诺贝尔化学奖。

麻省理工公开课 - 化学原理课程节选

Before we start on the trip, I want the children to know where in the world they are and where they've come from.

在我们开始旅行前，我希望孩子们知道,他们在世界的那个位置,他们来自哪里。

麻省理工公开课 - 媒体、教育、市场课程节选

And so let me just make one last point before we start a broader discussion.

WHITEHOUSE: President Obama Meets with Economic Recovery Advisory Board | The White House

Before we start, we all know that lists like this are all about advertising right?

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And, women think we have to be perfect and know everything before we start to do anything.

FORBES: Start Investing Now: Don't Wait Until It's Too Late!