If I gave you the location of a particle as a function of time, you can find the velocity by taking derivatives.

如果我给出物体的位移是时间的函数,你可以通过求导来得到速度

耶鲁公开课 - 基础物理课程节选

Let's pretend that at work, your boss gives you too much work and not enough time to finish it.

假设你上班的时候，老板给了你太多的工作，你没有足够的时间来完成它。

How can I 课堂 - SpeakingMax英语口语达人

So if you have more conceptual oriented questions, you can absolutely bring them to office hours, but just realize there's always a crunch time wise, especially on Wednesday's and Thursday's.

如果有很多概念方面的问题，你完全可以把它们带到办公时间来，但是请认识到，总是有零零碎碎的时间的，特别是在周三和周四。

哈佛公开课 - 计算机科学课程节选

I just love talking about this stuff and I welcome you to come to my office hours.

我就是喜欢谈论这些东西,而且我也欢迎你在我办公的时间来。

耶鲁公开课 - 死亡课程节选

It didn't-- if you needed more time to get some business done you'd have to borrow, but you'd only have to pay 1% a year.

如果你需要更多时间来完成业务,你需要借款,而只需付1%的年利息

耶鲁公开课 - 金融市场课程节选

How much time do you need to evaluate somebody on the five dimensions of personality?

你需要多少时间才能,用大五人格来评价一个人？

耶鲁公开课 - 心理学导论课程节选

So what this says is, you can measure time by having your own clock.

也就是说,你可以用时钟来测量时间

耶鲁公开课 - 基础物理课程节选

you know what, actually, let's think about this for a second.

你知道吗，实际上，让我们花一点时间来想一想这个。

麻省理工公开课 - 化学原理课程节选

Five of them sustain moderate injuries, one is severely injured, you could spend all day caring for the one severely injured victim but in that time, the five would die.

其中五人伤势不算严重，另外一人受重伤，你可以花上一整天时间,来医治这一名受重伤的病人,但那另外五个病人就会死。

耶鲁公开课 - 公正课程节选

you could imagine that this took some time to develop.

你能够想象,这种方法需要时间来发展

耶鲁公开课 - 生物医学工程探索课程节选

That is a maximum If you are sharing your time and energy during this period on Tuesday afternoons, or the arch-field don't work so think carefully about that.

让大家充分发挥自己的能力,如果每周二下午这段时间,你都有时间，精力也很充沛，就可以来上这门课，不过这样你就没时间参加实践活动了,所以请仔细考虑吧。

麻省理工公开课 - 电影哲学课程节选

We talk in terms of high pitch and low pitch although we'll fine tune that next time, and then we have this idea of duration or time, which we tend to write out in symbols that move from your left to right.

我们是从高低方面来谈论音高,即使我们将于下次讲解曲调的问题,我们已经有了音符时值或时间的概念,我们倾向于用符号来表示,时间是从你的左边向右边移动的

耶鲁公开课 - 聆听音乐课程节选

In another example, you can use a "when" question in order to ask about the timing of a specific event.

在下面这个例子中，你可以用When 问句来询问一个具体活动的时间。

When 课堂 - SpeakingMax英语口语达人

A clock tells you what time it is, but you can also say what time it is by seeing how fast the particle is moving because you know it started with some speed.

时钟能告诉你现在的时间,但你也可以通过测量质点速度,来判断当前的时间,因为你知道它的初速度

耶鲁公开课 - 基础物理课程节选

When you buy a house, you borrow the money and you pay it back in fixed-- it would usually be monthly, but let's say annual payments.

当你买了一座房子,你贷了些款,然后你在一定的时间内偿还一部分,一般来说都是按月来算的,但是假设我们是按年支付的

耶鲁公开课 - 金融市场课程节选

There are times and places for thinking about the facts of death.

你有时间和地点来考虑死亡的事实。

耶鲁公开课 - 死亡课程节选

You have to discount something that's one period in the future by dividing it by 1+r.

你必须把未来一段时间内的资金通过,除以1+r来贴现

耶鲁公开课 - 金融市场课程节选

So it's not that the result is going to be that I'm going to try to convince you that death isn't bad, but it takes actually a little bit of work to pin down precisely what is it about death that's bad and how can it be death?

所以，这么说,并不是我试图让你相信死亡不是坏事，但是这的确要花点时间来准确地说清楚,什么让死亡成了坏事，和怎样才算死亡？

耶鲁公开课 - 死亡课程节选