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

I remember there was a toy store in my town. It was just Toys R us.

我记得我们城镇有一个玩具店，就是"Toys R us".

FAO Schwarz的回忆 - SpeakingMax英语口语达人

But the nymphs in all of their sensuous beauty, with "flow'r-inwov'n tresses," they have to experience the same fate.

但是年轻女神很美丽，但头发被扯断了“,她们不得不经历同样的命运。

耶鲁公开课 - 弥尔顿课程节选

In an orbital is remember that this area right here at r equals zerio, that is not a node.

例如对于１ｓ轨道,记住这里ｒ等于０处不是一个节点。

麻省理工公开课 - 化学原理课程节选

And now the force, in its most general term / is q1q2 over 4 pi epsilon zero, which is the conversion factor r squared.

库仑力的最基本形式,就是，其中r是一个变量。

麻省理工公开课 - 固态化学导论课程节选

If you do it in monthly terms your interest rate is r/12 because there are twelve months in a year.

如果是每月还款那么月利率是r/12,因为一年有12个月

耶鲁公开课 - 金融市场课程节选

You might want to say in the real world, if you go to a movie theater for this R-rated movie, "Are you 18 and over or are you with a parent?"

在现实世界中，你可能想说，如果你去电影院看R级电影，“你有18岁吗？,或者你跟随你的父母亲来的吗？“

哈佛公开课 - 计算机科学课程节选

It tells you when a particle moves in a circle, it has an acceleration in a negative R direction, namely directed towards the center.

它告诉你当一个物体在圆周上运动时,它有一个在 -R 方向的加速度,也就是说是直接指向圆心的

耶鲁公开课 - 基础物理课程节选

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

R So let's get rid of R in this expression here.

利用这个式子，我们就可以消去。

麻省理工公开课 - 热力学与动力学课程节选

and the same for favour, they spell f-a-v-o-r, we put u in it,

同样地，对于发烧这个单词，他们拼写成f-a-v-o-r，我们要加一个u在里面，

美式英语和英式英语 - SpeakingMax英语口语达人

We're saying the probability of from the nucleus in some very thin shell that we describe by d r.

某一非常薄的壳层dr内,一个原子的概率,你想一个壳层时。

麻省理工公开课 - 化学原理课程节选

The conflictedness that Milton is encapsulating here is probably most intense in the last lines of this wonderful stanza: / "With flow'r-inwov'n tresses torn / the Nymphs in twilight shade of tangled thickets mourn."

弥尔顿在这想要化解的冲突,可能在这一段中最激烈：,少女的头发被扯断/,黄昏时在杂乱的灌木丛中哀叹“

耶鲁公开课 - 弥尔顿课程节选

This is the initial part of the simile that describes the leaves: "thick as Autumnal Leaves that strow the Brooks / in Vallombrosa, where th' Etrurian shades / high overarch't imbow'r."

这是描写落叶的比喻的开始部分：,“他们人数众多，稠密得像秋天的繁叶,/在瓦隆布罗萨，厄特鲁利亚的光辉逐渐暗淡“

耶鲁公开课 - 弥尔顿课程节选

When we're talking about r for internuclear distance, we're talking about the distance between two different nuclei in a bond, in a covalent bond.

当我们说，r，代表的是核间距的时候，我们讨论的是一个距离,在一个键--一个共价键的两端的原子核之间的距离。

麻省理工公开课 - 化学原理课程节选

You have to discount something that's one period in the future by dividing it by 1+r.

你必须把未来一段时间内的资金通过,除以1+r来贴现

耶鲁公开课 - 金融市场课程节选