And according to the Book of Joshua, Israel's tribal structure assumed its classical form at this time.

而且根据《约书亚书》,以色列的支派在那时已显示出了阶级形态。

耶鲁公开课 - 旧约导论课程节选

Then we talked a little bit about the sort of physics of what holds cells together to form a collection of cells, a tissue and to make up the structure of our body.

之后我们也谈了一点有关于,使细胞聚集形成组织,进而成为身体架构的物理原理

耶鲁公开课 - 生物医学工程探索课程节选

So, that's his gift to us: the Lewis structure, and the idea that you could share electrons and form a covalent bond.

这就Lewis给我们的礼物，Lewis结构，你能够通过公用电子,形成共价键。

麻省理工公开课 - 固态化学导论课程节选

I do want to talk about one important subject which you might not have thought too much about and that's lipids, because lipids are so important to the structure of the body because they make up the membranes that form the cells that are the fundamental units.

我的确想要讨论一个重要的主题,这个主题也许你们都没有深入思考过,那就是关于脂类的问题,脂类对身体结构形成十分重要,它是组成细胞膜的基本单位,而细胞膜能够维持细胞形态

耶鲁公开课 - 生物医学工程探索课程节选

That's because you have to satisfy this base pair matching in order to have hydrogen bonding in each of the struts of the ladder in order to form a stable structure.

NA双链要满足互补配对原则,以使碱基对之间,形成氢键,从而形成稳定的双链结构

耶鲁公开课 - 生物医学工程探索课程节选