So it started as self-defense, but I think some operators, they realized very quickly that with piracy you can earn much more money than you can as a descent fisherman.
VOA: standard.2009.10.30
STUDENT: PROFESSOR: Yes, thank you. All right, it is constant. You keep sitting back there where I can't get to you. Thank you very much.
学生:【不解中】,教授:是的,是常数,如果,就是常数,你坐在那儿一动不动我没法找到你。
So you can just spend so much money there and not get very much items at all.
所以,你可能在那儿花了很多钱,但是却没买到好的产品。
Okay, not to dwell too much on math because you can very quickly bore someone in computer science by dwelling too much on math but it's useful even for logical constructs as we'll see with loops.
不要过于纠结于这些数学问题了,在计算机领域,你会很讨厌那些,在这上面钻牛角尖的人,但是对于那些,像循环这样的逻辑结构又是很有用的。
This is very important, because when you buy a rope, they will tell you how much tension it can take before it'll snap.
这非常重要,因为你去买绳子,他们会告诉你,绳子能承受的最大拉力是多少
Now we're in trouble and I say, don't run away! There are no techniques, there are no maneuvers, there are no -- you can't do anything and so they didn't practice very much, except one stunning exception, the Spartans.
现在形势不妙,我说,"弟兄们,顶住",这些不需要技巧,不需要熟练的动作,也不需要--,你对战场上的一切都无能为力,因此他们也不需要什么操练,唯一让人赞叹的特例,就是斯巴达人
So, the optimal thing to do if you live in a world like this n is to get n as large possible and you can reduce the standard deviation of the portfolio very much and there's no cost in terms of expected return.
如果现实中也这样简单的话,那么你就尽量增大,这样就能让投资组合的标准差,就会大大降低,从预期收益率的角度来看,这样做的成本是零。
Well, you'll know when it crashes, that doesn't help you very much, but you can't always tell whether something's stuck in an infinite loop or whether it's simply taking a long time to compute.
好,你将学到它在什么时候会崩溃,这对你帮助并不大,但是你不能辨别出到底是在一个循环中,有什么东西卡住了呢,还是程序需要很长的时间来计算一个结果呢。
You can go in outer space-- No, it won't move very much.
你能到外太空去,是的,它不能跑得太远
It's very hard to see very much and you can't anywhere pretty much but straight ahead.
戴上头盔后视野很有限,基本上哪儿都看不到,只能往前看
If this part's very easy for you, there's not much I can do right now.
如果这一部分对你来说很简单,那我现在也没有办法
So with problems at zero, ; which will be posted in two forms; PDF PDF for standard and PDF for hacker on cs50.net tonight, you will have the choice of implementing pretty much any scratch projects you can think of, and which subject to very few constraints.
对于问题集,我们提供了;,标准PDF以及可编程,今晚它们都会被放在CS50,net上,你可以选择任何,你想到的项目,范围不限。
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