We can define it in a couple of different ways depending on whether we're talking about sample mean or population mean.

我们有几种不同的方式去定义这个概念,取决于我们指的是,样本均值还是总体均值

耶鲁公开课 - 金融市场课程节选

So she's going to have to stop working in a couple of months to take care of the baby.

几个月以后她就不能再工作，要开始照顾孩子了。

I need 实战 - SpeakingMax英语口语达人

You'll see why I'm going to make that distinction in a couple of lectures.

为什么我要把这个区分开来,好，那么这跟我的除数例子有什么关系呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

The response to the second exposure in antigen is different in a couple of ways.

第二次接触相同抗原,免疫系统的应答,在以下几个方面是不同的

耶鲁公开课 - 生物医学工程探索课程节选

But as you can see, in the run I'm talking about this, there really only are experiments in a couple of the dimensions of the educational purposes that we talked about in the very beginning.

但你们也看到了，我探讨这一点的过程中，所进行的实验只涉及到,我们在最开始谈到的,教育目标的几个方面。

麻省理工公开课 - 媒体、教育、市场课程节选

Jumping ahead, let me make a remark about this, because this is going to be relevant for something I'll get to in a couple of minutes.

跳转一下话题,我先来对此做一番评论,因为这和我们几分钟后,将要讨论的东西有关

耶鲁公开课 - 死亡课程节选

Or, if you don't believe Spinoza, if you don't believe his authority is sufficient, consider someone who you'll be reading in a couple of weeks, Jean-Jacques Rousseau, from the Social Contract.

或者，假如你不相信斯宾诺莎，假如你不信,他的权威性，那么想一想几星期之后,你们将要读到的一个人，让·雅克·卢梭，在《社会契约论》中。

耶鲁公开课 - 政治哲学导论课程节选

Just in a couple of minutes, I want to give you a little bit more sense of what educational design is and just a brief over view of the course work.

我想用两分钟，简单介绍一下教学设计,再简介一下课程内容。

哈佛公开课 - 幸福课课程节选

Our 60 plus person staff has been hanging out in a couple of dining halls on campus, namely the Cabot and Quincy House.

因为我们之中至少有60个人神游太虚,在想Cabot，和，Quincy，食堂，有哪些菜了吧。

哈佛公开课 - 计算机科学课程节选

I'm going to be a normal teacher maybe in a couple of years. So we'll see.

几年后我可能会成为一名真正的教师。到时候再说。

教英语 - SpeakingMax英语口语达人

All I've done is write down slightly boringly and nerdily, exactly what we already saw in a couple of occasions.

我写在黑板上的都是那些乏味的定义,我想你们你们忍受很久了

耶鲁公开课 - 博弈论课程节选

We can look at the basic structure of Deuteronomy in a couple of ways.

我们可以通过许多种方式来研究申命记的结构。

耶鲁公开课 - 旧约导论课程节选

There will be no war in a couple of years uh..If you look at the stimulus package, the one thing it is not done is stimulating.

未来几年将不会有发战争财的机会,呃，如果你看刺激计划，它没有做到的一件事情就是刺激市场。

斯坦福公开课 - 经济学课程节选

it would be easier, and then I'll think about doing it in a couple of years.

这将会变得更容易，我也会考虑在一两年内进一家大公司。

要想成为事业家 - SpeakingMax英语口语达人

But it's limited and it's limited in a couple of striking ways.

但这种能力是有局限的,表现在以下几个显著方面

耶鲁公开课 - 心理学导论课程节选

Maybe do the JET program in a couple of years when I'm graduated.

也许我毕业以后会参加日本交流和教学计划项目。

身为大学生很快乐 - SpeakingMax英语口语达人