We can start now to focus our attention on the real cause or causes of autism.

VOA: standard.2010.03.23

OK. Now, last thing about variables, and then we're going to start pushing on this, is where can you use them?

好，关于变量的最后一件事，然后我们就要，结束这个话题了，这个问题就是在什么地方可以应用变量？

麻省理工公开课 - 计算机科学及编程导论课程节选

So now that we begin to have this ability to express strings in memory, to understand what they are, we can start to apply actually real-world algorithms to them.

现在我们开始用这个技能来在内存中表达字符串,来理解它们是什么，我们可以开始,我们可以对其使用实际的，现实生活中的算法。

哈佛公开课 - 计算机科学课程节选

All right, so now we can move on to the start of today's notes, which is atomic radius.

好，现在我们可以开始讨论今天的讲义了，从原子半径开始。

麻省理工公开课 - 化学原理课程节选

Right, one the things you can see now is, we start building up classes, we get these methods.

实际上是相等的，好，你们现在，可以明白的一件事情是。

麻省理工公开课 - 计算机科学及编程导论课程节选

It turns out not, but it does evince the fact that we have some basic syntax like mathematics and equal signs and whatnot with which we can now start using for more useful purposes.

结果不是那样的，但这的确有个事实,我们有些基本的运算法则和等号和,其他一些东西，用来为我们一些,更多有用的目的而服务的。

哈佛公开课 - 计算机科学课程节选

Let's see how we can now start using them like I did for that little chart of enrollment.

现在让我们看看我们如何用它们来处理,那个登记人数的小图表。

哈佛公开课 - 计算机科学课程节选

OK. If we do that, if you look at the handout then, I can now start implementing this.

好，我们开始做，你们可以看看课堂材料。

麻省理工公开课 - 计算机科学及编程导论课程节选

Now we can think about the fourth period, and the fourth period is where we start to run into some exceptions, so this is where things get a teeny bit more complicated, but you just need to remember the exceptions and then you should be OK, no matter what you're asked to write.

现在我们可以考虑第四周期，而且在第四周期,我们会遇上一些特例，所以事情有,一点复杂，但是你只需要记住,这些特例然后就没有问题了，无论你被要求写什么。

麻省理工公开课 - 化学原理课程节选

Now, once we've got that, we can start doing things.

好，我们可以开始做了。

麻省理工公开课 - 计算机科学及编程导论课程节选

So that's going to be the end of the exam 1 material, and then we'll move on to exam 2 material, which is kind of exciting, because we've been talking about just individual atoms and ions up to this point, and now we can talk about molecules, so we're going to start talking about bonding.

到此为止就是第一次考试的内容，接下来我们会开始讲第二次考试的内容，这些内容令人有点兴奋，因为我们一直都只是在讨论单个的原子,和离子到目前为止，而现在我们可以讨论分子了，要开始讨论成键的问题了。

麻省理工公开课 - 化学原理课程节选

So we can think of a third case where we have the 3 s orbital, and in the 3 s orbital 0 we see something similar, we start high, we go through zero, where there will now be zero probability density, as we can see in the density plot graph.

第三个例子那就是,3s轨道,在3s轨道里，我们看到类似的现象,开始非常高，然后穿过，这里，概率密度是0，就像你们在概率密度图里看到一样，然后我们到负的。

麻省理工公开课 - 化学原理课程节选

So, operands. Let us take expressions, get values out, we can store them away in places, but ultimately we want to do something with them, so we need to now start talking about what are the things we can do inside of Python, or any programming language, to manipulate them.

也就是运算对象，让我们看看这些表达式，然后看看里面的这些值，我们可以把他们存在计算机的任何位置中，最终目的还是要对这些值做一些操作，因此我们现在需要开始讨论,在Python里面可以做什么，来操作它们了，或者在任何编程语言里。

麻省理工公开课 - 计算机科学及编程导论课程节选