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"In order to verify the casualties of civilians we have launched an investigation into this case to make sure how many civilians are killed and to make sure that what these civilians were doing at 2:30 in the morning in that place that is not a residential place.
VOA: standard.2009.09.04
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All right, so let's count how many we have here.
能不能帮我。
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So, seven asks us if we have any valence electrons left, and how many valence electrons do we have left?
那么，第七步问我们是否还有价电子剩下，我们剩下了几个价电子？
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All right. Let's step back from this discussion and notice how many objections have we heard to what they did?
我们先暂停讨论,回想下对他们行为，有多少反对意见？
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Okay, but it may be-- how many national anthems around the world do we have in minor keys?
好了,但是也许,世界上有多少个国家的国歌,采用的是小调呢
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How many of you, we won't let the camera see you, how many of you have not I'm not going to show hands at all.
多少人,摄像机先别拍他们了,多少人没有学过微积分,请大家举手吧
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So, how many have we got in the sulfur?
在硫中有多少个呢？
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Although I don't quite understand--I should say, there's many things about how the fighting went on which we can only attempt to imagine because we just don't have films of ancient hoplite battles, I'm sorry to say.
虽然我有时也很困惑,比如说,战场上瞬息万变,情况非常复杂,由于没有古代重步兵白刃战的影像资料,我们只能猜想战场上发生了什么,真的是很遗憾
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Many of you won't be here the next day, that's what happens with shopping period, and then the third day we see how many folks we have. We do have, for those people who want to take it, a travaux diriges en francais, we have a section that's French speaking.
你们好多人明天估计就不来了,购物季就是这样,然后第三天我们就能看出,还剩多少人,我们倒是为,那些有需求的人准备了,法语授课的课程,有一章节课是法语讲的
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Well, the mean is always .2 no matter how many policies you write, so it's going to be--we're going to have a normal distribution centered on .2.
不论你签了多少份保单,均值永远是0.2,所以这就是一个关于x=0.2对称的,正态分布
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Step three in our Lewis structure rules is to figure out how many electrons we would need in order for every single atom in our molecule to have a full valence shell.
路易斯结构规则的第三步是,找出让分子中每个原子的价壳层,都排满应该需要多少个价电子。
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Another thing to point out in these two graphs is that we do have nodes, and we figured out last time, we calculated how many nodes we should have in a 2 s orbital.
另外这两张图上要指出的是,我们可以看到节点，上次我们知道，我们算了２ｓ轨道有多少个节点。
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How many bonding electrons does c l have? All right. Let's see, we've got a mixed response here, it turns out it has two bonding electrons.
氯有多少成键电子？好，让我们来看看，大家的回答不太一致，结果应该是两个成键电子。
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See if you can determine how many chords we have here--whether we have a chord change.
看看你能不能听出这里面有多少有多少和弦，是否有和弦的转变。
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All we have to figure out is how many nodes we're dealing with and then we can get the general shape of the graph here.
我们要知道的就是有多少个节点,然后我们就能得到图的大致形状了。
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So, we can see in our 1 s orbital, how many nodes do we have?
有多个节点呢？,没有节点，嗯？
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How many electrons do we need to have full valence shells?
要把价层排满需要多少个电子？
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So how many bonding electrons do we have left?
我们剩下了几个成键电子？
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How many of those do we have?
它们一共有多少个？
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So, we actually met somebody who knew her; and the school is now named after her; but, it's a wonderful, wonderful read, it's just great. My family got a little tired of this and said, "Do we have to--how many more of these places do we have to see in which this woman taught?"
我们碰见一个认识她的人,然后学校也是以她命名,不过那本书真的很好看,就是特别精彩,我家人有点受不了了,然后说"咱还得,到底还得,去多少个这种她教书的地方"
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So we have 18 electrons, and the next thing that we need to figure out is how many bonding electrons we have.
那么我们有十八个电子，下一步要做的是判断,我们有多少个成键电子。
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And step four is going to have us figure out how many bonding electrons we have, so we have 16 minus 10, is going to be 6 bonding electrons.
而第四步需要判断,我们有多少个成键电子，那么我们有十六减十，也就是六个成键电子。
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So, our second step, as we go through our Lewis structure rules, is to figure out how many valence electrons we have in our entire molecule.
那么，我们的第二步，按照路易斯结构的规则，应该是判断在整个分子中,包含多少个价电子。
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How many valence electrons do we have left?
我们还剩下多少个价电子？
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And if we go on to step three where we figure out how many we would need for full octets, it's just going to be 2 times 8, so we have 16.
而如果我们继续到第三步,判断一下填满所有“八隅体“需要多少个价电子，结果应该就是二乘以八，也就是十六个。
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And step seven is how many electrons do we have left over that are going to go into lone pairs? How many?
而第七步是我们剩下,多少电子成为孤对电子？多少？
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We were going to have a clicker slide on how many bounced back but it looks like we're having a little technical difficulty with that.
发生背散射，球被弹回来了的,同学请你们站起来,让我算算。
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Yup, so one total node, 2 minus 1 is 1, and that means since l is equal to 1, we have one angular nodes, and that leaves us with how many radial nodes?
一个节点，２减去１等于１,因为ｌ等于１,我们有一个角向节点，那剩下径向节点有多少个呢？
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So there's two different orbitals that can have these three quantum numbers, but if we're talking about electrons, we can also talk about m sub s, so if we have two orbitals, how many electrons can we have total?
所以有两个轨道可以有,这三个量子数，但如果我们讲的是电子，我们还要考虑ｍ小标ｓ,如果我们有两个轨道，一共有多少个电子呢？
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Let's look now at a p orbital, so how many total nodes do we have here?
让我们来看看ｐ轨道，它有多少个节点呢？
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