I first had a list of size 8, then 4, then 2, but then I had another problem of size 2.

首先是一个有8个元素的序列，接着变成了4个元素，接着2个元素，然后我就碰到了有2个元素的另一个问题。

哈佛公开课 - 计算机科学课程节选

d1 2 3 And we can do that just going along, 3 d 1, 2 3, and the problem comes when we get to chromium here, which is instead of what we would expect, 4s23d4 we might expect to see 4 s 2, 3 d 4.

我们能做的就是继续，问题出现了,当我们来到铬元素时，它不是我们预期的那样，我们可能预期。

麻省理工公开课 - 化学原理课程节选

The assignment for the next class is to do Problem 2 of Chapter 1, which I've repeated right here, and that's to think beyond what I've talked about in terms of what is Biomedical Engineering.

下次课的预习任务是做第一章课后习题二,我在这里重复一下,除了我已经说过的东西之外,去想一下什么是生物医学工程

耶鲁公开课 - 生物医学工程探索课程节选

Where you go from problem of size n to a problem of size n minus 1.

或者缩减了2，这都一样的,也就是把问题的规模从n变成了n-1。

麻省理工公开课 - 计算机科学及编程导论课程节选

If you see a problem that asks you, for example, the third ionization energy versus taking a second electron out of the 2 s in a photoelectron spectroscopy experiment, those are two very different things.

如果你遇到一个题目问你的是，比如说，是第三电离能,还是在光电子能谱实验中从，2，s，轨道中,拿走第二个电子，这可是两个完全不同的问题。

麻省理工公开课 - 化学原理课程节选

Same sort of subtraction problem, what do we have for the ionization energy of the 2 s electron?

进行类似的减法运算,得到的，2，s，电子的电离能应该是多大呢？

麻省理工公开课 - 化学原理课程节选