It's got a start point, it's got an end point.

这需要一个开始点，和一个结束点。

麻省理工公开课 - 计算机科学及编程导论课程节选

Given the abstraction, the notion of a point as an instance with some values, I can now start building segments.

真的很有帮助，基于这个抽象,点的概念也就是一个，有一些值的实例。

麻省理工公开课 - 计算机科学及编程导论课程节选

So, normally at this point, we do actually start class with a little bit of history from alchemy to modern chemistry, but I decided to skip that this year.

通常在这个时候,我们要从一些从炼金术,到现代化学的历史出发正式开始我们的课程。

麻省理工公开课 - 化学原理课程节选

At some point, maybe a week later, four to eight days later, you would start to see antibody levels rise.

之后,或许一周之后,四天到八天之间,就可以看到抗体的浓度开始上升

耶鲁公开课 - 生物医学工程探索课程节选

Takes a start and an end point, just going to bind local variable names start and end to those pieces.

有一个开始和结束点，就是去把局部的变量的名字,和这些点进行绑定。

麻省理工公开课 - 计算机科学及编程导论课程节选

So, ideally what we did see was, in fact, it does have enough energy with the UV lamp, it wasn't a dramatic shift you saw because we didn't start very high and then it went to that stuck point.

所以，理想上我们所看到的，事实上，紫外灯没有足够的能力，因为我们没有从非常高开始,所以它没有一个特别显著的移动,然后它又回到了黏着点。

麻省理工公开课 - 化学原理课程节选

So this, where we start at zero is not a node, is the first thing to point out.

零点不是节点，这是第一个要指出来的，当我们。

麻省理工公开课 - 化学原理课程节选

It says if I want to get the length of a segment, going to pass in that instance, it says from that instance, get the start point, that's the thing I just found.

它的意思是如果我想要,得到一个线段的长度，首先要把这个实例传进来，然后对于这个实例，从开始点，取得x坐标，然后通过同样的操作。

麻省理工公开课 - 计算机科学及编程导论课程节选

I'm taking advantage of the fact that start is going to be a point, and I'm just directly saying, John give me your x-value.

我利用了开始是一个点这个事实,然后我就直接说，返回给我你的x值，因此我不知道。

麻省理工公开课 - 计算机科学及编程导论课程节选

So, for example, if I say TEST and I don't give it a start but I give it an end, then it gives me all the elements up to that point.

例如，我创建了TEST这个元组我没有给他,起始点却给了它一个结束点,然后程序会基于这一点放置所有的元素。

麻省理工公开课 - 计算机科学及编程导论课程节选