And if your answer is no, your answer will be no, then you just know you can't use this equation here.

如果不是，那就不能，你就知道，你不能用这个方程了。

麻省理工公开课 - 化学原理课程节选

because it will give you an opportunity to say "I want to be sure that this is done, has been done"

因为用这个句型，你就能表达“我想确认这事会做到的，或者已经做到了。”

Make sure 课堂 - SpeakingMax英语口语达人

I don't know a word of Russian, and so I actually try to avoid using the rather well-known Russian equivalents for these terms because I feel like an idiot.

我不懂俄语，所以我不用俄语读,而就用这个英语中通行的俄语替代词,这样感觉是不是挺傻的。

耶鲁公开课 - 文学理论导论课程节选

So before I just leave the subject of immortality, let me conclude with some words of wisdom from a former Miss USA contestant.

所以在结束永生这个话题之前，我就用,前美国小姐参赛者的箴言总结它吧。

耶鲁公开课 - 死亡课程节选

So I can do this really simply with a scale or just with my own arms.

这个比较很容易就能完成，我可以用天平,或者直接用我的手臂就行了。

哈佛公开课 - 计算机科学课程节选

So now in this problem, we can do something slightly different, and let's use this expression here,and I will do that, then I'll stop for today.

对于这个问题,我们可以稍微做点变化,让我们用这个式子,就是这样,今天就讲到到这里

耶鲁公开课 - 基础物理课程节选

But Ian Hacking, being a good historian, thought that someone must have had some concept of probability going before even if they didn't quote it as a number the way-- it must have been in their head or in their idea.

但是这位优秀的历史学家伊恩·哈金认为,一定有人在更早时候就用过概率这个概念,即便他们没有用数字来表述,但他们一定有过类似的想法

耶鲁公开课 - 金融市场课程节选

You use this pattern whenever you want to express that you have experienced something in the past previously.

每当你想表达你之前已经经历过某事的时候，你就可以用这个句型。

I've already 课堂 - SpeakingMax英语口语达人

So STR, which I just typed up there, takes in parens, some input, and it converts it into a string, so that now I can use that John where I was expecting a string. John.

因此STR，也就是，我刚刚输入的，然后把这个输入变更为一个字符串，因此现在我就能,在需要用字符串的地方使用这个对象了。

麻省理工公开课 - 计算机科学及编程导论课程节选

You take your room temperature liquid helium and you cool it with liquid nitrogen to 77 degrees Kelvin, the new, you're not quite there yet 77k unfortunately right? Then you take hydrogen you cool it would liquid nitrogen to 77, then you can use your hydrogen gas.

首先要有常温的氦气,拿液氮把它冷却到77k，那个新来的7,你不坐在那儿，对吧？,然后用液氮把氢气降温到,然后就可以使用这个氢气了，想要用氢气来做焦耳-汤姆孙实验。

麻省理工公开课 - 热力学与动力学课程节选

Use this pattern when you wish to express what you are doing right now.

当你想表达目前你正在做什么的时候，你就可以用这个句型。

I'm ~ing 课堂 - SpeakingMax英语口语达人

That's when you can use it.

这些时候你就可以用这个句型了。

Don't 课堂 - SpeakingMax英语口语达人

Then to get the monthly payment, you take the square bracketed thing and you divide by the mortgage balance and that's the monthly payment; that's how it's calculated.

如果要算每月偿还额,你用贷款余额,除以这个方括号的值,这样就得出每月偿还额,这就是每月偿还额的计算方法

耶鲁公开课 - 金融市场课程节选

I said, use the name mystring to be bound to or have the value of Eric, so I can refer to it anywhere else that I want to use it.

用mystring这个名字,来绑定Eric这个值，这样我就能,在任何想用这个值的地方使用它了。

麻省理工公开课 - 计算机科学及编程导论课程节选

In the classroom, you use this symbol.

而在课堂上 就用这个符号

耶鲁公开课 - 基础物理课程节选

If you invented it, we'd call it whatever your name is, but this is the guy who invented it, so it's called a Newton, usually denoted by a capital N.

如果是你发明的,我们就用你的名字当单位,但这个单位是他发明的,所以叫它牛顿,一般用大写字母 N 表示

耶鲁公开课 - 基础物理课程节选

So, that is a tricky problem to begin with because if you take this formula here, it tells you y if you know t, but no, we're not saying that.

以这个问题刚开始的时候有点难度,因为如果你要用这个公式,求y的时候就一定要知道t,但是,我们不知道

耶鲁公开课 - 基础物理课程节选

I know this is the right answer, because if I now find the acceleration, I find it's mg divided by m and I get -g as the answer for all bodies.

我知道这个等式是正确的,因为现在如果我要求物体的加速度,用 mg 除以 m,我就得到 -g,这个结果对所有物体都成立

耶鲁公开课 - 基础物理课程节选