And they're useful because, first of all, they're easy to depict, they're easy to draw relatively easy once we get all the rules down.

它很有用是因为，首先，它很容易描述，它很容易画出来,一旦我们确定了所有的规则以后就比较容易。

麻省理工公开课 - 化学原理课程节选

So, how do we figure out first how to draw the skeletal structure of this molecule here?

那么，我们如何来解决它,首先是如何画出这个分子的骨架结构？

麻省理工公开课 - 化学原理课程节选

So the expression I wanna draw first of all is the best response of Player I as a function of S2 and we agreed that that was given by 1 plus 1/4 now, 1 plus 1/4 S2.

首先我们想要绘制的表达式是,参与人I的最佳对策是S2的函数,我们都知道它等于1+S2/4

耶鲁公开课 - 博弈论课程节选

Hydrogen, we can first draw in our atomic electrons.

氢原子，我们可以先画出原子电子。

麻省理工公开课 - 化学原理课程节选