So you're going to need to remember, so this is an exception, you have to memorize.

所以你们需要记住，这是一个例外，你们应该记住。

麻省理工公开课 - 化学原理课程节选

And this is an exception, but there were quite a few of those exceptions.

有例外，但也只有很少例外。

哈佛公开课 - 幸福课课程节选

Now, this is an exception.

现在，这是个例外。

麻省理工公开课 - 固态化学导论课程节选

But what I'm going to tell you already is this is a case where, in fact, it's an exception to the idea that the lowest energy structure has the lowest ionization energy in the middle, and we can figure this out when we look at formal charge.

但是我已经告诉大家这个例子，实际上，是中心原子电离能最低的结构,的能量最低这一思路的一个例外，我们可以通过形式电荷看出这一点。

麻省理工公开课 - 化学原理课程节选

The reason this an exception is because it turns out that half filled d orbitals are more stable than we could even predict.

这个例外的原因是因为,半填充d轨道比,我们预期的填充方式更加稳定。

麻省理工公开课 - 化学原理课程节选