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These are actually all examples that we'll talk about in freshman chemistry at some point, as an example of a connection between a chemical principle we learn, and what we can know about how it functions.
作为联系一个我们,所学的化学原理,和我们能知道它，如何工作的例子。
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I know you can say it easily. I know you can speak well and write well in English. Keep it up!
相信你很快就能掌握的。你的口语跟写作都会很棒的。再接再厉！
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We can know this information even if we just knew that the bond was stronger, we wouldn't need to look at a graph here, because it turns out that if you have a stronger bond, -- that also means that you have a shorter bond -- those two are correlated.
我们依然可以得到上面的信息,即使我们所知道仅仅是这个键更强，我们不需要去看这个图，因为事实上如果你有一个更强的键，这也就意味着你有一个更短的键-,这两点是互相关联的。
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Now Descartes, you remember, in his Meditations begins by asking a series of questions about how we can know anything, and one of the skeptical questions he asks is, "Well, might I not be crazy?"
大家应该记得，在《沉思录》的开头，笛卡尔问了一系列,关于我们如何知道一切的问题，其中的一个问题是，我可能疯了？
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This is the way where you can know that you will have an effect.
通过这种方式，你可以清楚地知道,你将会起到作用。
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Again, I need a hand so I can know where to throw candy.
又一次，我需要大家举手,因此我可以知道哪儿去扔点儿糖。
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We have no idea what this menacing contraption actually is supposed to look like or what it's actually intended to signify, but we can know, I think, with some certainty that it's not scrannel.
我们无从得知这个威胁性的装置,实际上是什么样或者要代表什么，但是我们可以通过一些并不细小的确切性得知。
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If stock price option -if stock options tend to be issued as announced by the company later, just before stock prices go up, there's no way that that can be right because nobody can know exactly when the stock price is going to go up.
如果股票期权价格...,如果就像公司事后宣称的一样,公司恰好是在股价上涨之前,发行的股票期权,这是不可能做到的,因为没有人可以确切知道,股票价格何时会上涨
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He's trying to indicate that there are things that we can't really know in a scientific way but we can glimpse.
他想说明有些事,我们并不能通过科学来理解,但我们能知道一点
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No, so, my point is that I want you to succeed, and I know you can succeed.
不，我的意思是，我希望你们成功,我知道你们能够办到。
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We know they can't sign a legal agreement, but let's take that off the table.
我们都知道不能签署违法合同,那就只能私底下签协议了
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Libertarian says you can't know just from the facts I've just given you.
他们说，你不能仅从这个事实来判断。
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most of it is really a kind of high-end stuff. You can see, you know, what's trendy, what's new there,
其中很多商品真是高品质的。你可以看得到，流行的、新潮的东西，
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There was a boy in that class who was a great hacker and I know he can hack things very quickly.
班上有个男孩，是一个很厉害的黑客，可以迅速地入侵系统。
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so you can meet other students, so you can get to know your way around the campus a little bit.
让你能见到其他的同学，可以熟悉一下校园。
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I don't know if you can see those colors much at all, sorry about that.
我不太能确定你们是否能看清,这些颜色,不好意思
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