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We should be going to 55 minutes after the hour, so I have something to share with you.
我们上了一个小时55分钟了，我有些事要和你们分享。
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I think we're taken aback here. We're taken aback by the rude interruption in the otherwise seamless flow of the poet's lament.
在这点上我们被震惊了，被这种粗鲁的打断深深震惊了,否则诗人的悲叹将会天衣无缝的流畅通顺下去。
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So, step five tells us to add 2 electrons between each atom, so we add two there.
那么，第五步告诉我们在两个原子之间放上两个电子，因此我们在这放上两个。
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And what I recognized was first of all, how impoverishing that was spiritually to not be able to bring my faith identity into the public square.
而我意识到,第一，我们精神上很枯竭,因为我们不能将自己的宗教身份,带入公共场所。
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In terms of primitive data, what we saw were two kinds: Right?
在基础数据方面，我们上节课学了两种类型对不对？
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We talked about mitosis last time; it's described more completely in the chapter, where two cells are formed from one.
我们上节课说到过有丝分裂,在那一章里更详细的阐释了,细胞是怎么由一生二的
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But the kind of exercise we did last time is a useful exercise for those of you who are Econ majors.
但是我们上节课做的练习,对经济学专业的同学是非常有用的
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You know, we've done a bunch of thermochemistry, and we've kind of seen that the energy of mixing, your energetics don't change too much as a function of temperature.
我们做过很多的化学热力学习题，某种程度上我们发现混合的能量，并不随着能量,发生大的改变。
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In American history our reform crusades have usually had to do with one of several objects or purposes or problems.
在美国历史上我们为理想而进行的改革,通常与如下几个目的,或意图,或者问题之一有关联
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There are also all kinds of paradoxes and subtle puns and ironies, and in section where you'll be doing a lot of your close reading work, those are some of the things that will be drawn to your attention.
里面有各种悖论，微妙的双关语，明讥暗讽，在课上我们将会做很多精细的阅读，而那些就是你们应该注意的地方。
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Because if we recognize that there are things in the world which have intrinsic value and importance and what we call beauty.
因为如果我们承认世界上有这么,我们称为“美“的东西，其本质上就无价且珍贵。
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Modern poetry, as we study it in this class and, I think, as you see it in this anthology, is an international phenomenon.
我们课上学习的现代诗歌，你们在诗集中可以看到，我认为是一个国际现象。
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So let's return now to the question, "How might we argue for the existence of the soul?"
现在让我们再回到这个问题上,我们怎样论证灵魂存在
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We tend to like people who we're close to physically, who we are physically and spatially close to, who we spend a lot of time with.
我们倾向于喜欢离我们近的人，身体上空间上离我们近的人，经常和我们相处的人。
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But in this class we're gonna approach it in a completely different way, and learn a lot more about the film that, things that Hitchcock put in there.
但在这堂课上我们将要,从一个完全不同的角度来看这部电影，并从中学到很多希契科克，倾注到里面的东西。
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Remember what we did.
回忆一下我们上节课的内容
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We're also happy to say we're not quite at 50% yet, 38% but the proportion of women in CS50 is now up to 38%, which is its highest level in 21 years.
我们非常高兴的说，在CS50课程上我们虽然没有50%的女生，但现在已经达到了，这是21年来最高的比例。
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Because we've just sat in lecture and you've told us we're not being rational if we pick a high number.
因为我们刚刚上过课,你告诉我们选大数的人是不理性的
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Last lecture, you might have thought this was a SHASS class, it's not like a philosophy class, and it was important to set the stage for what we're going to talk about, but we talked about very high level things.
上一节课，你们可能认为,这课没什么意思，这可能不太像一门哲学课，为我们所要讨论的去做好准备,是很重要的，我们上节课讲的是一些比较高层次的的东西。
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So, we can actually kind of visualize what we would see if we were looking at a photoelectron spectrum.
实际上,我们可以在一定程度上想象出,我们在光电子谱上可以看到什么。
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As we saw in the last lecture, the elder brother holds an entirely different theory of chastity, and of course, it's a lot more optimistic.
我们上一讲中看到,年长的哥哥对贞节有完全不同的看法，当然那是乐观许多的。
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For the sulfur, we start off with 6 valence electrons, minus 4 lone pair electrons, minus 2, taking in account our bonding electrons, so we end up with a formal charge of 0.
对于硫，我们从六个价电子开始，减去四个孤对电子，再减去二，算上我们的成键电子，因此最终我们有零个形式电荷。
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So let's turn our attention to a new topic, which is thinking a little bit about the periodic table, and also talking about periodic trends.
我们的新主题上，我们将会讨论一点关于元素周期表的知识，同时也会讲一讲周期性规律。
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So these are just the pictures that we saw last time.
这是我们上节课见过的图像。
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This is one of our summer students from this past summer, who is also premed.
这是我们上学期四个夏季学生中的一个,也是医学预科。
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So, when we're talking about the idea of electronegativity, essentially what we're talking about is the ability for an atom to attract electron density from another atom.
那么，当我们在讨论电负性这一概念的时候，本质上我们讨论的是一个原子的吸引能力,用来吸引另一个原子的电子密度的。
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Essentially we're not going to see this, it's 9 kilojoules per mole.
本质上我们不会看到它，它等于9千焦每摩尔。
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This is one example that, without fail, people would say is a marvel of medicine and bioengineering, but that it's still something to keep track of.
刚才就是一个例子,在技术上我们并没有失败,人们也会称赞医学和生物工程的神奇,但仍然需要注意可能发生的情况
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We talked about division last time.
我们上节课说过了细胞分裂
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