The former astronaut says he would like to go back to the moon to see how the American flag he and Neal Armstrong planted there is doing.

VOA: special.2011.07.18

Is this possible? That's what the first law says it's possible; work is heat, and heat is work, and they're the same thing. You can break even 100% maybe. So let's go back and see what work is.

00%的效率,我们可以从大气中吸收热量，用来驱动我们的汽车,效率也应该能达到。

麻省理工公开课 - 热力学与动力学课程节选

That'll catch a lot of just silly mistakes for you if you go back and see it and you don't have all of that.

这可以让你抓到很多低级错误,如果你回去发现它们不一样的话。

麻省理工公开课 - 化学原理课程节选

I want to go back to our energy level diagrams and see if I can rationalize energy level diagrams.

让我们往回看，回到我们的能级图表,来看看我是否能使能级图表合理化些。

麻省理工公开课 - 固态化学导论课程节选

But Newton's law is-- You see, you've got to go back and wipe out everything you know.

但牛顿定律是,如你所知的,你必须回到过去,忘掉你所知道的一切

耶鲁公开课 - 基础物理课程节选

Let's go back to the model, add in an extra candidate, and see what happens.

我们回到最初的模型,然后加入第三个候选人,看看结果会怎么样

耶鲁公开课 - 博弈论课程节选

Then you see way back in human histories figures like this where people had to go hunt for their food, and of course there was danger involved in this.

让我们回到人类演化史上,如这张图所示,人们不得不去狩猎觅食,当然,这是非常危险的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

But I want to go back there because what I want to do now is, I want to change some critical assumptions of that model and see that by making those changes, we're going to get some very different outcomes.

但我回来的原因是,我想改变一些模型的关键假设,并看看通过这些改变,我们将得到何种不同的结果

耶鲁公开课 - 博弈论课程节选

So, hopefully, if you were to go back and look you could see that this is, in fact, copper.

因此，我希望大家如果回去再看一遍,这个题目的话，能够知道这是铜原子。

麻省理工公开课 - 化学原理课程节选

Let's go back to methane and see what happens there.

让我们回到甲烷，看看发生了什么。

麻省理工公开课 - 固态化学导论课程节选