I just want to make mention of this in case there's ever doubt, generally parentheses do solve your problem as an arithmetic but do realize this is some lower level details we'll come back to over time.

是想告诉大家如果你对某些式子的前后运算关系不确定，就加上括号,这都是一些小细节,我们以后还是会再提到的。

哈佛公开课 - 计算机科学课程节选

If you are not fixed on seeing one particular show, if you go to Leicester Square,

如果你不是确定看一场特定的演出，如果你去莱斯特广场，

廉价看音乐剧的方法 - SpeakingMax英语口语达人

All around. If you plug in the numbers, you will end up with an uncertainty 15% in the momentum as being on the order of 15%.

所有，如果你把数字都加起来，你将得到一个关于动量的不确定度,约为。

麻省理工公开课 - 固态化学导论课程节选

If I went on and told you what the different incident light was, and what the electrons were ejected with, and then you could look up the ionization energy for the particular different elements, you should be able to actually determine exactly which element it is, but just with the information given, we can only narrow it down to these choices here.

如果我继续告诉大家入射光源是什么，出射电子的动能是多少，那么你可以去查一查,以上各个元素的电离能，这样你就应该能确定,这个元素到底是哪个，但是只凭题目中的信息，我们只能把范围缩小至以上几种元素。

麻省理工公开课 - 化学原理课程节选

If you're in this state, you will necessarily, given the laws of physics and the way the computer's programmed and built and so forth, these wires will turn on, turn off, these circuits will turn on, turn off, boom, suddenly you'll be in that state.

如果你站在这个角度,你必定会考虑,在物理定律和电脑编程原理,如何构造的等等确定的情况下,这些电线通或断,这些回路通或断,嘣,突然你就处在那个位置上

耶鲁公开课 - 死亡课程节选

You can ask yourself, "If you gave me a particular vector, what do I use for Ax and Ay?"

你可以问问自己,"如果给定一个矢量,该怎么确定 Ax 和 Ay"

耶鲁公开课 - 基础物理课程节选

And if you're not sure what to do, you can always go to club fairs,

如果你不确定该做什么，你可以一直去俱乐部的集会，

阿卡贝拉组合最棒 - SpeakingMax英语口语达人

If you're stuck, if you're struggling, if you're not certain about something, please ask. We're not mind readers, we can't tell when you're struggling, other than sort of seeing the expression on your face, we need your help in identifying that.

如果你很差，如果你很纠结，如果你不确定某件事情，请问我们，我们不会读心术，我们没法儿看出来你们很纠结，除非能从你们的面部表情看出来，我们需要你们在这件事儿上的配合。

麻省理工公开课 - 计算机科学及编程导论课程节选

Let's quantify the energy value. If you go through and solve for energy, you will get this equation.

我们来确定一下能量值，如果你试图寻找,解决能量问题，你能得到一个方程式。

麻省理工公开课 - 固态化学导论课程节选

Because this is something that could certainly have screwed you up if you didn't realize it did it, and you need to have that discipline to make sure it's doing the right thing.

因为这是一件如果你没意识到,要这么做的话,可能会令你抓狂的一件事，你需要一个规范,来确定Python做了正确的事情。

麻省理工公开课 - 计算机科学及编程导论课程节选