We're going to really get into this next class, but I just want to introduce it to you to give us a start, and many of you have used Lewis structures in high school, but we'll be doing some much more challenging Lewis structures, I can assure you, in this class here.

其实我们下节课才会详细介绍它，但是今天我只想以简单介绍作为开始，大部分同学在高中就用过路易斯结构了，但是我们会遇到一些更具挑战性的,路易斯结构，我可以向大家保证，在这门课中会的。

麻省理工公开课 - 化学原理课程节选

You're out there in Sicily and you discover, of course, that you don't have all of the things that you used to have available to you, that used to be made let us say in Corinth.

你身在西西里岛发现,你过去在科林斯所能得到的东西,在这里并非一应俱全

耶鲁公开课 - 古希腊历史简介课程节选