Philip Peters, Vice President of Lexington Institute, a private research orgnization based in Virginia, disagrees with members of Congress who assert that ending TV Marti broadcasts would strengthen the Castro regime in Cuba: "I don't know how we have gotten ourselves in the position where this particular instrument of public diplomacy is a test of everyone's manhood with regard to Communism in Cuba.
VOA: standard.2009.06.18
How would I know what amino acid that is?
我怎么知道这个氨基酸是什么呢
But I don't really know about how long it would take people to hack, like, the general firewall
但我不知道人们具体要用多长时间才能穿过防火墙,
This will be the definition of the mole as the amount of carbon weighing exactly 12 grams, so I would like to know now how many particles, how many carbons are there in that mole.
摩尔的定义就是,12克的碳的数量,我想知道有多少粒子,一摩尔会有多少碳粒子。
PROFESSOR: Great question. So the question is, how do you choose an algorithm, why would I choose to use a pseudo-polynomial algorithm when I don't know how big the solution is likely to be, I think that's one way to think about it.
教授:问得好,所以问题是,你怎样选择算法,为什么当我,不知道解决方案会有多大的时候,我要选伪多项式算法呢,我想这是一种思考问题的方式。
Most of us don't know enough to know with a high degree of accuracy how things would have gone had I decided to become a farmer instead of a philosopher.
多数人了解得都不够,无法更确切地知道,如果我成为农夫而非哲学家,到底会有怎样的人生。
And you know, A) I don't have the energy to do this, and B) it would probably violate four hundred different privacy laws or whatever But if I took all those faces and morphed them together, I would get a very pretty face ? And how do we know this?
你们知道,第一,我没有精力这么做,第二,这可能会违反400条不同的隐私条例,但如果我把你们的样子,混合在一起,会得到一张很漂亮的脸,我们怎么知道?
I don't know how much you're used to it-- Where would you see that?
我不清楚你们是否熟悉,你们会在什么情况下见到相关性呢
I would ask you to see how such energy level diagrams rationalize what we know to be true.
我想问你,看看这种能级图,如何证实我们知道的是正确的。
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