You get down to brass tacks when you say, "it sounds good, but how much does it cost?"
VOA: special.2010.05.16
And what he said was that when you get down to atomic length scales there are limits, there are constraints on our ability to observe.
讲的就是,当你去进入到原子长度的尺度中,我们的观察能力,有一定的限制条件。
You know, frankly, when it comes down to it, people want to give money and get something in return.
坦率地说,归根结底一句话,人们在有所投入的时候也是期待有所回报的。
If things didn't work out long term, they still have a spot for me I think if I want to go back and finish my MBA it's just not that high risk when you get right down to it.
如果长期下来不行的话,他们仍然偏爱我的话,我想我可以,回来读完工管硕士,实际去做的话困难并不大。
The way he described is when you try to get down a quantum dimensions and you are standing there with your camera, just remember the sun is at your back and your shadow is always in the picture.
这种方法被他描述为,当你试着处理一个量子尺寸时,并且你试着拿着你的相机在那,记住太阳在你的背后,而你的影子总是在照片上。
And it's just gathering together the multiplications while counting down the exponent. And you can see it when we get down to the end test here, we're going to pop out of there and we're going to return the answer.
这个方法就是通过乘法,来一个一个的减小指数,可以看到,最后面的结果测试,我们会在这里退出,然后返回答案。
These are going to be fairly common-sense definitions, but they're important, and when you get to a problem set, really nailing down what the system is, not more, nor less, in terms of the amount of stuff, that's part of the system, it's going to be often very crucial.
这些是,很常识性的定义,但是很重要,当你要解决问题时,务必要搞清楚系统是什么,它包含多少物质,不能多也不能少,这往往,是非常重要的。
You see the lactose of course from milk, and then when you get down to the cellulose, and we're talking about starches and then fiber gets involved in here too, then cereals and vegetables become the primary source of these.
你们知道乳糖来自于乳类,当你研究纤维素的时候,以及我们在这里所说的淀粉和纤维,他们最主要的来源是谷类和蔬菜
Impress them upon your children. Recite them when you stay at home and when you are away, when you lie down and when you get up.
也要殷殷教训你的儿女,无论你坐在家里,行在路上,躺下,起来,都要谈论。
Right, so the things we want you to take away from this are, get into the habit of using pseudo code when you sit down to start a problem, write out what are the steps.
好,这儿我想大家明白的就是,养成解决问题时先写伪代码的好习惯,把步骤都写出来,我想要告诉你们的是一个好的程序员。
It's a bad habit to get into, because when you come back to it, it may haunt you later on down the road. So really get into that notion of trying to be defensive as you program.
来运行程序的时候,错误就会出现缠住你了,因此现在我们真的要培养,在程序中有防卫性设计的概念。
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