One, two, three, four, so on each level of the picture I'm drawing, I've seem only to be looking at each number once.

，2，3，4，可见，在我画的,这幅图的每一层上，对每个数字,都只会用到一次。

哈佛公开课 - 计算机科学课程节选

So, now we have said go to the address stored in X, which is who knows, it's over there, put the number 42 there so what I've just drawn is this part of this story here.

那么，现在我们指明定位到存储在x中的地址，那就是把数字42放在那里,我所画的就是这一部分。

哈佛公开课 - 计算机科学课程节选