Barack Obama has spoken repeatedly of Lincoln's influence in making it possible for the country to have its first African-American president.

VOA: special.2009.02.09

If you just have the first half, That that development is accomplished when Richard decides to leave the South.

如果你只看书的前面，你可能认为但理查，下定决心离开南方时,故事就此完结了。

耶鲁公开课 - 1945年后的美国小说课程节选

I know to be a judge, you can't just become a judge, you usually have to practice as a lawyer first.

就我所知，你不能一开始就成为法官，你必须先成为一名律师。

为了更美好的世界 - SpeakingMax英语口语达人

Kirsten Kennedy,housing director at the University of South Carolina in Columbia,says all first-year undergraduates there have to live in a dorm.

VOA: special.2009.03.26

Scholars have proposed three possible models to explain the formation of Israel. The first is an immigration model.

学者们提出了三种可能的模型,来解释以色列的形成，第一种是移民模式。

耶鲁公开课 - 旧约导论课程节选

Well,experts say the expression appears to have been first used in the United States more than one hundred years ago.

VOA: special.2010.01.17

Now this isn't the first time that we have in Milton the representation of the turning of a person to marble.

这不是第一次,在弥尔顿的表述中把人向石头转换。

耶鲁公开课 - 弥尔顿课程节选

Those five plus Germany have been preparing to meet with Iranian negotiators on October first to discuss Iran's nuclear program.

VOA: special.2009.09.26

So that means it's not possible, if we've made these stipulations in the first place, to have a case where l equals 1.

这说明我们之前的假设,ｌ等于１不可能的。

麻省理工公开课 - 化学原理课程节选

Many people think that the Industrial Revolution was the first time people began to have a major effect on the earth's ecology.

VOA: special.2011.04.26

Maybe somebody who knows Citizen Kane and would like to have a grade for the first 50 pages.

也许比较清楚了解的同学可以做,需要先读前50页的内容。

麻省理工公开课 - 电影哲学课程节选

But traditional guidelines say not to use tPA if more than three hours have passed after the first signs of a stroke.

VOA: special.2009.08.12

In Machiavelli, we have what we have come to call "modernity," given its first and most powerful expression.

因为马奇亚维利,我们才有，“现代“这个词汇“,因为它从此有了最初与最有力的表述。

耶鲁公开课 - 政治哲学导论课程节选

You can make your own chances. But first you have to know what you are after,my dear."

VOA: special.2009.02.14

OK. So to do this, we're going to have to do a couple of things. All right, the first one is, what do we mean by input size?

好，为了实现这种方法我们,有些事情要做，第一件事情就是，当我们说到输入的大小的时候代表了什么呢？

麻省理工公开课 - 计算机科学及编程导论课程节选

Historians say the Italian scientist and mathematician may not have been the first to get a good look at the moon and planets.

VOA: special.2009.10.27

We're going to have a diagnostic quiz and you are taking a quiz the first day.

有一个诊断性小测验,你们第一天就得做一个小测验了

耶鲁公开课 - 聆听音乐课程节选

This is the first time scientists have successfully passed on a foreign gene to a future generation.

VOA: special.2009.06.23

I would say, keep that to a minimum, because what the first formula tells you should be so intuitive that you don't have to cram this.

我会说,越少越好,因为对于第一个式子的内容,你应该觉得如此自然,以至于你都不用去记

耶鲁公开课 - 基础物理课程节选

He is the first living American Indian artist to have a solo show at this museum.

VOA: special.2009.11.13

Well, first I have to sort the left half of these elements.

首先，需要对这些元素的左半部分进行排序。

哈佛公开课 - 计算机科学课程节选

He did not have much luck,though, the first time he went up to dunk the ball.

VOA: special.2010.07.05

And at first glance it looks the answer there gotta have to be.

乍一看，好像,答案是肯定的。

耶鲁公开课 - 死亡课程节选

He was the first black newspaper columnist to have his work appear in major newspapers.

VOA: special.2009.11.01

First of all, they have to have these qualities, but it's not enough.

首先,他们必须拥有这些品质,但这还不够

耶鲁公开课 - 古希腊历史简介课程节选

But to finish college, children first have to reach the starting line by getting there.

VOA: special.2009.09.10

For the first time"--this was, of course, the French aristocrat de Tocqueville "For the first time we have had the chance to examine the effect that slavery produces on a society.

第一次",这位托克维尔即是,法国的那位贵族德·托克维尔,"第一次我们有机会仔细观察,奴隶制对一个社会造成的影响

耶鲁公开课 - 美国内战与重建课程节选

It advises girls to delay their first pregnancy until their bodies have fully developed.

VOA: special.2010.08.09

The generations of students that are coming to University today have essentially grown up with the Internet. And some of them are the first generation Where the internet have been part of their life in their Formative years. For most of us, the people of my age, The internet came later.

现在进大学的这一代学生,成长在因特网的环境下,一些人是伴随着因特网成长的第一代,网络是他们性格形成期的一部分,然而对我们这个年纪的人来说，因特网是后来才有的。

麻省理工公开课 - 媒体、教育、市场课程节选

Sure. So the first year in law school, we have to write a brief and then argue it in front of a judge.

好。在法学院的第一年，我们要写一篇辩护状，并在法官面前论证。

在模拟审判课堂 - SpeakingMax英语口语达人