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And you know, they are really nice when they light up at night. "One couple we talked to was visiting from France.
VOA: special.2010.05.07
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Absorption is just the opposite of emission, so instead of starting at a high energy level and dropping down, when we absorb light we start low and we absorb energy to bring ourselves up to an n final that's higher.
吸收就是发射的逆过程,与从一个高能量到低能量不同，当吸收光时，我们从低能量开始,吸收能量到一个更高的能量。
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Well, we can't guarantee with UV light we'll have enough energy to eject every single electron, so that's why when we use x-rays, they're higher energy, you can pretty much be guaranteed we're going to eject all of those electrons there.
好，我们不能保证紫外光有足够的能量,激发出每一个电子，所以我们要使用，X，射线，它的能量更高，你可以非常确定,我们可以激发出其中所有的电子。
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We want you to know we have a green light to continue this series next week.
VOA: special.2010.05.23
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What do we make of these allusions to divine colleagues or subordinates in light of Kaufman's claims regarding biblical monotheism?
参照考夫曼的一神论主张，我们如何理解这些暗示？,他们的地位等同于，还是次于上帝？
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"We use some kind of light oil that we heat up and we actually work it into the oily feathers.
VOA: standard.2010.06.08
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If we think that our knowledge is positive, we say "red" in a red light means stop.
如果我们主动认知，红灯的意思是停。
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However,in the light of the new development, we have reinforced our security systems in all our airports,".
VOA: standard.2009.12.28
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And then confronted with a new case, we found ourselves reexamining those principles, revising each in the light of the other.
当我们面临新的情况时，我们重新检验这些原则，根据新的情况修正这些理由或原则。
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And we know our spirituality is genuine. It's true, like the light of the sun.
VOA: standard.2010.04.05
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We'll turn eventually to the question, how should we live in light of the fact that death is the end?
我们将最终将要探讨，在知道死亡就是终结的情况下我们该如何生存？
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"We hope to shine the light brightly on the scope and scale of modern slavery so all governments can see where progress has been made and where more is needed,"
VOA: standard.2009.06.16
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and it's going to be light there but it may not be as light as we would like it.
我们也会胜利的,但可能不会是那么圆满。
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"You can't say,'We're going to do less because those numbers are pessimistic.' You say,'We have to do what we do in light of those numbers.'" House minority leader John Boehner repeated his assertion that President Obama has largely ignored Republican proposals on the budget and economy.
VOA: standard.2009.03.24
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And if we see it, appreciate it, we water it, we shed a light to it, and it appreciates, it grows.
只要我们看到它，欣赏它，灌溉它，播撒阳光，它就会感恩，成长。
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And we don't put the mass of the electrons because they are so light in comparison.
我们不能得到电子的质量,因为它们相较起来太轻了。
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So if we just go a tiny distance in here, this is Bud Light and so on.
那么如果我们稍微走点距离,这是百威淡啤酒,以此类推
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We are turned away from the light.
只会离光明越来越远。
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We're in between absolute day and absolute night, light and dark.
我们处在绝对的日与绝对的夜之间，光与暗。
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OK, so we've got UV light here, and let's see what we can see, and we lose electrons, if that's what's happening.
好了，我们已经有了紫外光源，让我们来看看能观察到什么，如果那些事情发生了，我们将会失去电子。
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Just like we see destructive interference with water waves or with light waves, we can also see destructive interference with orbitals.
就像我们看到水波,和光波的相消干涉，我们也可以看到轨道的相消干涉。
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We know that UV light gets absorbed by glass, so it shouldn't be able to go through the glass.
我们知道紫外光会被玻璃吸收，所以它无法通过玻璃。
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And if we do, in fact, hit it with light to get the electrons off, it will go back to the straight up in position, or if it gets knocked hard enough it does that, too.
而且如果我们这么做，事实上，用光轰击它以逐出电子，它就会在原位置沿直线返回，或者如果它被撞击的足够猛烈,也会出现上述现象。
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and of course we've already been gazing at that light back there, and it's not a good example.
如果我们看着那里的灯，虽然这个例子有些瑕疵。
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Well, we can continue. On a light-up valentine it means "don't stop, go."
勇往直前吧“
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It's in light of this ongoing cultural tension in the period that, I think, we can understand some of the strange confusions concerning chastity that we find in the poem that we're looking at.
根据那年代持续的文化紧张状态，我认为我们可以理解那些,在诗中读到的涉及贞节的困惑。
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And the reason is, and this will come up on the problems and a lot of students end up using this equation, which is why I want to head it off and mention it ahead of time, we can't use an equation because this equation is very specific for light.
原因是，很多同学在解题时,都会用这个方程，所以我要,事先提醒你们一下,我们不能用这个方程，因为它只对光是用。
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And one thing that Einstein put forth is he figured if well, what we're saying is that light is, in fact, a stream of particles, each one of those particles or photons must, therefore, have a momentum.
爱因斯坦提出了一件事情,他指出如果我们所说的光，事实上是一束粒子，那么这些粒子或者光子中的，每一个都有动量。
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Sometimes we model light as beams of light, as rays of light.
有时候我们把光看成光束模型，看成光射线。
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And what we predict as an energy difference between two levels, we know should correspond to the energy of light that's either emitted, if we're giving off a photon, or that's absorbed if we're going to take on a photon and jump from a lower to a higher energy level.
我们预测，两个能级之间的能量差，我们知道，它要么和发出的光有关,如果它发出光子的话，要么它吸收光子,从低能级跃迁到，更高能级上去。
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