"And I just take this, a good sharp whittling knife like this and cut away everything that does not look like a guitar."
VOA: standard.2010.07.06
So this one is not a spoof, it's actually a pretty cute video and it offers us the opportunity to just take a look at some of the kinds of ideas we'll be looking at in this course.
这个就不是开玩笑了,它其实是个比较有趣的视频,它让我们有机会了解,在我们课堂上会讲到的一些思想。
So again, let me just take a look out there. How many of you remember this?
我再问一下,多少人还记得这些知识
"My brother and I were talking about how - normally you do not just walk up to a temple or a synagogue and say, 'hey,can I come in and take a look?' So this is a great opportunity and exposes me to a lot of things that I would not otherwise have been exposed to,"
VOA: standard.2009.10.19
Just take a look: if this is 9, 5 divided by 9 is always going to be 0 point something, and if you thus have two integers and you're rounding down, which is what happens when you do integral math we're using this operator, I'm going to get zero times whatever.
稍微看一看:如果这是9,5除以9会得到,0点几,如果你用两个整型数,你舍去小数,这就是当你们,用整型数使用这个操作的所发生的事情,我将得到数值0乘以任何一个数字。
I've just copied it here so you could take a look at it.
我只是将它复制在这以便你们能够看到它
This is a food, a common food that most people would recognize, and I'd just like to see if you could guess what it is from the list of ingredients, so take a moment to look at the list of ingredients and then I'll see if you can guess.
这是一种食品,一种大多数人都见过的普通食品,我想看看,大家能否通过配料表猜出这是什么食品吗,所以,花点时间来看看这张配料表,看看大家能不能猜出来
All right, so that's s p 3 hybridization, but those aren't the only type of hybrid orbitals that we can form. Let's take a look at what happens if instead of combining all four orbitals, we just combine three of those orbitals, and what we'll end up with is s p 2 hybridization.
好了,这是sp3杂化,但这并不是我们可以,形成的唯一类型的杂化轨道,让我们来看看,不是四个轨道结合,我们仅仅结合3个轨道。
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