He also questioned why Mr.Zelaya chose to return now two months ahead of new presidential elections.

VOA: standard.2009.09.22

If you look at the normal labs that are in many places, you have a lab on Thursday afternoons, and the labs are either two weeks ahead or two weeks behind the lecture material.

如果你了解其他地方,一般的实验室，比如在星期四下午有实验课，这些实验要么是讲座的两周前,要么是讲座的两周后,才进行。

麻省理工公开课 - 媒体、教育、市场课程节选

Your final exam will be basically one or two questions that I'll give to you ahead of time.

你们的期末论文要讨论1到2个问题,我会提前给你们的。

耶鲁公开课 - 新约课程节选

So at this point in the story, we're not gonna forge ahead to here or to here, or the last two lines.

那么这时，我们并不能继续执行,这行或这行，或者说后两行的指令。

哈佛公开课 - 计算机科学课程节选

And as we said, he made the assumption that those two charges were equal, so we can go ahead and cross those right out.

我们说过,他假设，这两个电荷是相等的。

麻省理工公开课 - 化学原理课程节选

One-two, two-two. Go ahead.

一-二,二-二,开始

耶鲁公开课 - 聆听音乐课程节选

Why don't we go ahead for those of you who need a bit of a rest bit, let's take a two minute break and we'll resume with just some final thoughts on 50.

好吧我们先休息两分钟,然后再重新回到课上来,再讲一下对于这门课的一些最终的想法。

哈佛公开课 - 计算机科学课程节选

Just two, I touched 6 once and then I moved ahead, and then I touched 8 and I moved ahead, not touching any other number.

只有2次，我先将6移了下来，然后将8移了下来，并没有动其他的数字。

哈佛公开课 - 计算机科学课程节选