It is, in other words, a center which is outside the structure: "a center which is not a center," and we'll come back to that in a minute.

换句话说，它是结构之外的中心：,“不是中心的中心“,我们马上会再谈到。

耶鲁公开课 - 文学理论导论课程节选

So, which atom would you expect to be in the center of a Lewis structure for thionyl chloride?

那么，大家认为那个原子应该在,亚硫酰氯的路易斯结构的中心位置呢？

麻省理工公开课 - 化学原理课程节选

In other words, I look at a structure and I say it has a center.

换句话说，我看着一个结构然后我说她有一个中心。

耶鲁公开课 - 文学理论导论课程节选

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

But to speak of an intentional structure as a center is not at all the same thing as to speak of an intending person, author, being, or idea that brought it into existence, because that's extraneous.

但是讲到一个作为中心的意向性结构,与讲到一个创造它的人，作者，存在，或概念是完全不同的，因为那是外来的。

耶鲁公开课 - 文学理论导论课程节选