Their weightless-looking structures were mostly made of glass and metal.

VOA: special.2009.12.13

So, we can also get into a case where we have similar values in terms of absolute values of formal charge between two different molecules we're deciding between in their Lewis structures.

我们还可能遇到另外一种情况,那就是在我们需要进行,选择的两种路易斯结构中,形式电荷具有相似的绝对值。

麻省理工公开课 - 化学原理课程节选

Lipids are really complex molecules on their own right, but because of their particular kind of complexity they allow certain biological structures to form.

脂类本身是非常复杂的分子,但正是它们独特的复杂性,使它们能够形成某些生物结构

耶鲁公开课 - 生物医学工程探索课程节选

So remember, that when we talked about Lewis structure, the organizing principle behind Lewis structures is the idea that within the molecule the atoms are going to arrange their valence electrons, such that each atom within the molecule has a complete octet or full outer shell.

记得，当我们讨论路易斯结构的时候，路易斯结构所遵循的组织原则是这样一种思路,那就是分子中的原子都倾向于,重新安排它们的价电子,使得分子有一个完整的,“八隅体“或者排满的外壳层。

麻省理工公开课 - 化学原理课程节选

Proteins have three dimensional structures in solution and their structure determines what they do.

在溶液中,蛋白质以三维结构存在,它的结构决定功能

耶鲁公开课 - 生物医学工程探索课程节选