So in terms of the first step of skeletal structure, this is actually going to be easier because we don't have a central atom, we just have carbon and nitrogen here.

对于第一步画出骨架，其实比刚才更容易,因为我们没有一个中心原子，我们这里只有碳和氮两个原子。

麻省理工公开课 - 化学原理课程节选

But the two others axis, per the syllabus that we'll explore in great detail in the course and also these are the axis along with which we'll evaluate your submissions are design, in other words how well implemented is this?

但是另外两个中心线，按照教学大纲我们将探究,课程中格外的一些细节,这些中心线是跟,我们评估你们的设计论文是一致的，换句话说，这个执行得怎么样？

哈佛公开课 - 计算机科学课程节选

So it's centered at this frequency that was expected, but it's actually split into two different frequencies.

它的中心在预计频率处，但劈裂成两个不同频率。

麻省理工公开课 - 化学原理课程节选

These two systems which are shown in the core of this diagram really are responsible for regulating and exchanging information between the other organ systems.

在这张图的中心画的就是这两个系统,它们的功能是调节其他系统,并与之交换信息

耶鲁公开课 - 生物医学工程探索课程节选

He says he seeks to give the two central institutions of Torah.

他说，他试图找到《出埃及记》中最中心的两个机构。

耶鲁公开课 - 旧约导论课程节选

We can also talk about atoms that have two or more central atoms.

我们也可以讨论,有两个或者更多中心原子的分子。

麻省理工公开课 - 化学原理课程节选