The story in Exodus has high drama, and lots of folkloric elements including this contest between Moses and Aaron on the one hand and the magicians of Egypt on the other hand.

出埃及记》中的故事很有戏剧性，有很多民间传说的元素,由摩西和亚伦之间的较量,以及与埃及巫师的争斗。

耶鲁公开课 - 旧约导论课程节选

And, this is the difference in electronegativity between the two elements, all right?

就是在两个元素之间的,电负性的差别？

麻省理工公开课 - 固态化学导论课程节选

Now if you read in the book, you read about where this figure is shown in the book, you can understand more about why these structures line up in the right way so that the right molecular elements are together to form hydrogen bonding pairs between them.

如果你预习过课本,课本中有关于这些详细的描述,你可以更深刻的理解,为什么这些结构是采用这种连接方式,以使对应的分子部分靠近,并形成氢键连接

耶鲁公开课 - 生物医学工程探索课程节选

So, when the value of the average valence electron energy lies between 11 eV and 13 eV, we have these elements that are neither fish nor fowl, and you'll see in a little bit their unique electrical properties.

所以，当平均价电子能,在11eV到13eV之间时，这些元素介于金属和非金属之间，你们将进一步,看到它们独特的电性质。

麻省理工公开课 - 固态化学导论课程节选