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So if we're talking about the third period, that starts with sodium and it goes all the way up to argon.
所以如果我们谈论第3个周期，它从钠开始,一直到氩。
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So you sort of have a zero-base budgeting model of, "If we were a start-up, what would we do? How would we organize to deliver value to the customers?"
所以得有一个零基础预算模式，如果我们从头开始，我们该做什么,我们如何组织以带给客户价值“
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Then we start paying a dividend and then if we ever have to cut it, we're in big trouble.
然后我们开始分红,如果暂停分红,大麻烦就来了
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We have a strained image of the composition of the poem at its very outset and we have an image of someone writing as if he were participating in a race.
如果一开始我们就对诗歌的创作有一种不友善的印象,那么我们就会对诗人有一种印象,就好像他正在参加一场竞赛。
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That's a crucial mistake that we make when we first try to come to terms with what Freud means by "the death wish."
如果我们一开始就试图理解弗洛伊德所谓的,“死亡冲动“就犯了大错误了“
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There we go. Now if I do this, an infinite number of times, we should get roughly 50/50, but now we have the ability to do things only once in awhile.
开始，如果我们，不停地按这个按钮，我们大致会有一半的机会听到猫叫，但是我们每次只有一次按按钮的机会。
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If you come to believe, if you say to the world, "We are the hope of humans, we are the hope of earth, we are progress.
如果你开始相信,并向全世界发出宣言,"我们是人类的希望,是世界的希望,也是进步的力量
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Secondly, as we go to the more advanced part of the course, we'll take a result from this part of the blackboard, stick it into the second part and keep manipulating, so if I screwed up in the beginning and you guys keep quiet, we'll have to do the whole thing again.
其次,随着我们课程的深入,我们需要把黑板这边的计算结果,抄到黑板的那边,不停地这么做,如果我一开始就写错了,而你们又不出声,我们就得全部重新来过
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is going to be just the opposite of 2px So if you said 2 p x the first time, 2py say 2 p y this time.
就和，我们开始说的那个,如果你第一次说，现在就是。
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So, if we start instead with talking about the energy levels, we can relate these to frequency, because we already said that frequency is related to, or it's equal to the initial energy level here minus the final energy level there over Planck's constant to get us to frequency.
如果我们从讨论能级开始，我们可以联系到频率上,因为我们说过频率和能量相关,或者说等于初始能量,减去末态能量除以普朗克常数。
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If they start demanding then we're in trouble.
如果他们开始要求，那么我们将会陷入困境。
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And if we have time today, we'll start in on the photo-electron spectroscopy, if not, that's where we'll start when we come back on Wednesday.
而且如果我们今天还有时间，我们将会开始光电子频谱，如果没有,我们将会在下周三回来时开始。
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So, you can imagine, that we'll actually probably have a lot of kinetic energy left over if we put a lot of energy in in the first place.
因此，可以想象，如果我们一开始,就注入大量的能量,那么得到的动能也应该很大。
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So we'll start to look at molecules and we'll see if we take two atoms and we fill in our molecular orbital and it turns out that they have more anti-bonding orbitals than bonding, that's -- a diatomic molecule we'll never see.
我们要看开始看一看分子,并且我们会发现如果我们,取两个原子并且填入分子轨道,结果是它们的反键轨道,比成键轨道更多，这就是-一个我们不会看到的二元子分子。
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So, if we talk about dissociating h 2, we're going from the h 2 molecule, and breaking this bond right in half, so we now have two individual hydrogen atoms here.
那么，如果我们讨论的是离解氢分子，我们将从氢分子开始，使这个键断裂，一分为二，那么就得到了两个分开的氢原子。
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Well, if we scroll up where did we begin?
好，如果向上滚动，我们从哪里开始？
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The reason in our radial probability distributions we start -- the reason, if you look at the zero point on the radius that we start at zero is because we're multiplying the probability density by some volume, and when we're not anywhere 0 from the nucleus, that volume is defined as zero.
在径向概率密度里，我们开始,如果你们看半径的零点，我们从零点开始,因为我们用概率密,度乘以体积,而当我们，在离核子很近的地方,体积是，所以我们会在这里。
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So carbon has four valence electrons, so if we talk about c 2, again we're going to start filling in our molecular orbitals, and now we're going to have eight electrons to fill into our molecular orbitals.
碳有4个价电子，所以如果我们考虑C2的话，同样，我们开始填分子轨道，现在我们有8个电子,要填入分子轨道。
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