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At times of crisis when everything is collapsed you know,there is no, people don't know where to go,"
VOA: standard.2010.01.20
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That's an idea that struck people intuitively at various times in history, but they didn't know how to do these calculations.
在历史上,人们很多次,直觉地感知到了这一点,但是他们不知道怎么去计算
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Of course, we will also be talking about behavioral finance in this course and we'll, at times, be saying that the utility function concept isn't always right-- the idea that people are actually maximizing expected utility might not be entirely accurate.
当然 我们还会,在这门课上讨论行为金融学,并且,我们会间或,讨论到效用函数不总是正确的,人们希望最大化期望效用的观点,也许并不是完全准确的
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du/dV So now our du/dV, dp/dT at constant T is just T times dp/dT which is just p over T minus p, it's zero.
现在我们的恒定温度下的，等于T乘以dp/dT，在这里,等于p除以T，最后再减去p，结果是0。
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I think you can tell by analogy with what I did in one dimension that the position of that object at any time t is going to be the initial position plus velocity times t plus one half a t square.
你们可以类比一下我在一维情况下的结论,这个物体在任意时刻 t 的位移,等于初始位移,加上 v ? t + 1/2 ? a ? t^2
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And Mark has been extraordinary, as a leader, in maintaining a very high bar and at times, walking away from people who are receiving outstanding recommendations but either don't fit from a cultural standpoint or they're not going to scale and they'd be the wrong person a year or two from now.
作为Facebook的领导者，马克始终坚持选人标准，从不手软，他经常会放弃一些,得到强有力推荐的应聘者,他们要么是在文化方面不契合,要么是因为，如果公司没打算扩张,那他们在一到两年内,会成为错误选择。
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Today, if you read the newspapers tomorrow, you'll read--we're trying to do the same thing at Motorola and if you bother to read The Wall Street Journal tomorrow or maybe The Times, I don't know you'll see a little bit of what we're trying to do there.
在当今这个时代，如果你明天读报纸，你就会读到我们正在试图对摩托罗拉公司,做和我们刚才所说的同样的事情如果你们不嫌麻烦,读一读《华尔街日报》或者《时代周刊》，我也不知,道你想读什么，你会了解一些我们正在做的事情。
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At every point of time your mortgage balance is equal to your mortgage payment times that square bracketed thing, where T is the amount of time you have left.
在每个时间点的抵押贷款余额,都等于每月偿还额乘以,方括号内的值,T是剩余年份数
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