Then the X-15 pushes over the top of its flight path.

VOA: special.2010.07.07

int X Well, if you declare int X up top, you could certainly update X to one here.

嗯，如果你在顶端声明，你可能把X更新为1了。

哈佛公开课 - 计算机科学课程节选

And you can very quickly take this feature to an extreme 10 and start putting X and Y and A and B and 10 and all your variables up top because it would seem to solve all of your problems and stop all of your thinking, but it's generally not a good thing.

你可能迅速地使这个特征成为一个极端,开始把X和Y和A和B和0,和所有的变量都放在最前，因为好像它可以,解决你的所有问题，并中止你的想法，但通常这不是一件好事情。

哈佛公开课 - 计算机科学课程节选

In the other context, you know in a Window and a Windows machine, you close it with the X on the top right hand corner, where do you close it in the Mac?

还有一个就是，在Windows操作系统下,当你要关闭某个东西时，需要点击,右上角的“X“,那在Mac操作系统下呢？

哈佛公开课 - 计算机科学课程节选