So this means we can actually calculate this for any molecule that we've drawn the Lewis structure for, because we actually do need to draw the Lewis structure before we know, for example, how many of each of these we have, or at least go through the rules.

这意味着我们可以将原来画过,路易斯结构的分子的形式电荷计算出来，因为我们其实在画出,路易斯结构之后才能知道，比如，这些量的值是多少，或者至少我们需要经过前面的那些步骤。

麻省理工公开课 - 化学原理课程节选

So if I had drawn that better it would look as if this was half of this distance, but I didn't draw it well.

如果我画得准确的话,这段应该是整段长度的一半,不过我没画好

耶鲁公开课 - 博弈论课程节选