Fans loved the special way she rolled her "r"s to create a sound like a cat.

VOA: special.2009.06.07

He urged revival of the slave-trade in the late 1850s, and he developed a theory of what he called warranteeism--w-a-r-r-a-n-t-e-e-I-s-m.

他促成了十八世纪五十年代后期,奴隶交易的复苏,还自己发明了一套理论,名为抵押品主义

耶鲁公开课 - 美国内战与重建课程节选

I can't remember their names either, but their last names begin with "R" and "S" and "A".

我也记不住他们的名字，但他们的姓氏是由“R”，“S”和“A”开头的。

积极参与俱乐部活动 - SpeakingMax英语口语达人

When I was a young child in school, I had to learn the three R's.

VOA: special.2009.07.26

And we can simplify this expression as saying negative e squared over 4 pi, epsilon nought r squared. Epsilon nought is a constant, it's something you might see in physics as well.

也会遇到它,在这里，你可以就把它,理解为一个转换系数,我们需要做的。

麻省理工公开课 - 化学原理课程节选

The address is u-s-a-l-e-a-r-n-s dot o-r-g.

VOA: special.2009.01.15

We notice that the value of E at r naught is negative, as it should be. It's a negative number.

我们主要到在r圈时E的值为负，和它本来的值一致，是一个负数。

麻省理工公开课 - 固态化学导论课程节选

That's m-a-c-a-r-o-n.

VOA: special.2010.04.12

It was found in strain R, a particular strain of E.coli, and it was the first one found, There's a nomenclature that's evolved for this.

酶被发现于R菌株,大肠杆菌中一种特别的菌株,又是被发现的第一种内切酶,有一种专门为此制定的命名法

耶鲁公开课 - 生物医学工程探索课程节选

Additional Home Secretary D.R.S.Chaudhary told a news conference Sunday authorities and citizens need to be vigilant, especially in five eastern states.

VOA: standard.2009.06.21

We found that it's R log V2 over V1.

这是路径A，我们已经得到它。

麻省理工公开课 - 热力学与动力学课程节选

That set turned into a benefit for his family, with Big Star's remaining members joined by Mike Mills of R.E.M,M Ward, Amy Speace and others for a trip through the Big Star catalog.

VOA: standard.2010.04.07

So we know it's moving on a circle of radius r.

因此这个质点始终在做半径为 r 的圆周运动

耶鲁公开课 - 基础物理课程节选

Muscovy had already conquered the Volga basin in the 16th century, where the nomadic Tatars were, T-A-T-A-R-S.

6世纪时莫斯科公国已经征服了伏尔加盆地,游牧鞑靼民族住的地方

耶鲁公开课 - 欧洲文明课程节选

So, let's say we start off at the distance being ten angstroms. We can plug that into this differential equation that we'll have and solve it and what we find out is that r actually goes to zero at a time that's equal to 10 to the negative 10 seconds.

也就大约是这么多,所以我们取初始值10埃,我们把它代入到,这个微分方程解它,可以发现，r在10的,负10次方秒内就衰减到零了。

麻省理工公开课 - 化学原理课程节选

That was Cartesian space. When I plot r as a distance out from the nucleus that is sort of our simple-minded planetary model. Now let's look at energy.

笛卡尔坐标系，当我用r表示,离原子核的距离时，那只是我们头脑中简单的,类似行星的模型，现在我们看一下能量问题。

麻省理工公开课 - 固态化学导论课程节选

and a radius R and that's where your particle is.

半径为 R,这就是质点的位置

耶鲁公开课 - 基础物理课程节选

But instead in this chemistry course, I will just tell you the solutions to differential equations. And what we can do is we can start with some initial value of r, and here I write r being ten angstroms. That's a good approximation when we're talking about atoms because that's about the size of and atom.

但在这个课里，我会直接，告诉你们微分方程的解,我们可以给距离r一个初始值,我这里把r取10埃,当我们讨论原子时,这是一个很好的近似,因为原子的尺寸。

麻省理工公开课 - 化学原理课程节选