And if we put that in our bond here, we have 1, 2, 3 bonds, plus we have one lone pair left over.

如果我们把它们放到键里，我们有1，2，3个键，还剩下一对孤对在这里。

麻省理工公开课 - 化学原理课程节选

Seriously, I only have one pair of shoes because I only have one pair of feet.

说实话，我就只有一双鞋，因为我只有两只穿鞋的脚。

How many实战 - SpeakingMax英语口语达人

So if we take a look at nitrogen here, what you'll notice is we have thre available for bonding, - and we already have our lone pair -- one of our orbitals is already filled up.

如果我们看一下氮原子，我们注意到我们可以成3个键，我们已经有一个孤对-,其中的一个轨道已经被填满了。

麻省理工公开课 - 化学原理课程节选

Because you know the energy of one pair.

因为你们知道一对的能量。

麻省理工公开课 - 固态化学导论课程节选

One of the things about these plasmids that makes them very useful is that their entire base pair sequences is known.

质粒之所以有用,其中一个原因就是,它的全部碱基序列都是已知的

耶鲁公开课 - 生物医学工程探索课程节选

Why don't we give Philip both the matching pair and give you each a pair of socks since he didn't get to wear this one, they are brand new, in fact, and a big round of applause for what I'm sure is a little difficult.

我们为什么不给飞利浦一双配对的袜子,给你们每人一双袜子,他还没穿这双袜子，所以这双还算是全新的，再次以热烈的掌声对他们表示感谢,这样的模仿还是有一些难度的。

哈佛公开课 - 计算机科学课程节选

and they bought every single one of these guests a pair of new shoes for a party favor.

而且他们给每个参加聚会的人买了一双新鞋。

富家孩子的生日 - SpeakingMax英语口语达人

But then I ask them to think, and in the book I ask the readers to think: Well, have you given a cost of an expensive pair of shoes to save the life of one of the around 9 million children who are dying from poverty related causes each year around the world?

但是，接着我让他们思考，在书中，我让读者思考这样一个问题：,你有没有捐出过买一双鞋的钱,来拯救900万儿童中的一个生命？,他可能正因为贫困导致的种种问题,而生命垂危，每年世界上都会有这样的儿童？

普林斯顿公开课 - 人性课程节选

A little while ago there was a sniper, actually a pair of snipers killing people in Washington and the one thing everybody knew about it was there was a white van involved.

几年前出现了一个狙击手，确切地说，是一对狙手在华盛顿作案,大家都知道的一件事是,作案过程中有一辆白色小货车。

耶鲁公开课 - 心理学导论课程节选

That's what we call when we have three bonding atoms and one lone pair.

这是当我们有3个成键电子,和一个孤对时这样称它。

麻省理工公开课 - 化学原理课程节选

So if we still have an angle of a 109 . 5 degrees, and again, we still have four unpaired electrons available for bonding, we can make one of those bonds with another s p 3 hybridized carbon, so we're going to make up one pair here.

如果键角仍然是109。,同样，我们还有4个未配对的电子可以用来成键，我们可以用其中的一个,和另外一个sp3杂化碳原子成键，这样我们可以组成一对。

麻省理工公开课 - 化学原理课程节选

One plus one and then an ion pair grabs another one, another one.

加,接下来一对吸引另一对，再一对。

麻省理工公开课 - 固态化学导论课程节选

Well one way you could do it is by saying 'if I have this one base pair difference then this sequence is going to be cut by a specific restriction enzyme that recognizes the sequence CTGAGGA'.

一种方法是通过考虑,"如果我有这个不同的碱基对,那该序列必然会,被特定的限制酶识别并切割,这个特定的限制酶能识别,CTGAGGA "

耶鲁公开课 - 生物医学工程探索课程节选