让我们开始画牙齿，同样先从大形态开始。

Lets work on the teeth, as well as to achieve some over all form.

youdao

让我们从简单的练习开始，例如盯住墙上的一幅画几分钟，不动也不说话。

Start with easy exercises like staring at a picture on the wall for a few minutes without moving or talking to anyone.

youdao

All right. So let's think about how to draw the oh, actually, let me let you tell me how we should start this Lewis structure.

好，那么我们来想一想应该怎么画,噢，实际上，我想让大家来告诉我,我们应该怎么开始画这个路易斯结构。

麻省理工公开课 - 化学原理课程节选