If you want to understand whether compounds form or not look only at the valence shell.

如果你想理解化合物是否形成,而不仅仅只是看看价层。

麻省理工公开课 - 固态化学导论课程节选

I also want to give another layer to this understanding of O'Connor as a religious writer by looking at what she said in her correspondence to one of her readers who asked her some questions, and this is on the handout that I passed around.

我还想给大家另一层,理解这位宗教作家的方式,那就是去看她,回复一位读者问题的信件，这在我发给大家的材料上有。

耶鲁公开课 - 1945年后的美国小说课程节选