I want you to draw some conclusions about its authorship and the way it was compiled or composed." And so you pick it up and you start reading and you notice features like this.

关于作者的身份，以及创作的方式,做一个总结,带着这些问题，开始读书的时候，你会发现这样的特点。

耶鲁公开课 - 旧约导论课程节选

And, I know I need to come up with four symmetric equi-length bonds, and let's just see, let's draw the structure here.

我想我们需要,4个对称的等长的键，让我们画出CH4的结构。

麻省理工公开课 - 固态化学导论课程节选