"There was a great deal of careful data collected showing how identical the two sections, these two large sections of the class were beforehand.

VOA: special.2011.06.02

The way he came up with his scale was actually he borrowed the Romer scale, which came beforehand.

他设计的温标,实际上是借用了更早的罗默温标，罗默是个丹麦人。

麻省理工公开课 - 热力学与动力学课程节选

You kind of have to work those things out, like establish what you are beforehand like,

你需要把事情谈清楚，比如什么事都要提前说好，

找房子的方法 - SpeakingMax英语口语达人

All right, this is actually a very old piece of imperative knowledge for computing square roots, it's attributed to Heron of Alexandria, although I believe that the Babylonians are suspected of knowing it beforehand.

好，这是一个很古老的,关于计算平方根的程序性知识，是亚历山大的海伦提出的，不过我怀疑在那之前,巴比伦人就已经猜想过了。

麻省理工公开课 - 计算机科学及编程导论课程节选

Also that person should watch the movie beforehand and then coming with any ideas.

当然该同学必须提前看那部电影,然后过来上课时准备一些想法。

麻省理工公开课 - 电影哲学课程节选

But... I guess the best way is to know how the tests are set up beforehand

但是……我觉得最好是提前知道考试是什么样的。

收到了录取通知书 - SpeakingMax英语口语达人

And developing a... kind of plan for what to do if there's a disagreement beforehand.

提前制定一套应对矛盾的方案。

又有趣又奇特的课堂 - SpeakingMax英语口语达人

And you were unsure that it was offensive beforehand.

而事前你并不清楚这对客户来说是一件忌讳的事。

I didn't 课堂 - SpeakingMax英语口语达人

I think the book has a fairly good description of it so if you don't pick up everything in the lecture, hopefully you've read that beforehand, and you can go back to it afterwards and read about things that didn't make sense.

我认为课本对DNA表述很详细,所以在课堂上无需面面俱到,希望你们之前做过预习,课后你们可以通过复习,弄懂那些不甚理解的地方

耶鲁公开课 - 生物医学工程探索课程节选