There is Bohr at the center, and there is Heisenberg who is the one electron orbiting the center.

波尔在中间，这儿是海森堡,就像一个电子围绕着中心运转。

麻省理工公开课 - 固态化学导论课程节选

then what you have is a carbon in the middle with three hydrogens around it, and then it can only be bonded to one other thing.

那么你就会有一个碳原子在中心,三个氢原子围绕着它，那么它只能再和一个原子成键。

麻省理工公开课 - 化学原理课程节选

According to this theory, the atoms consist of a positively charged nucleus surrounded by a stream of electrons kept together by attractive forces from the nucleus.

根据这个理论，原子由一个带正电荷的核组成,由于来自核的吸引力,电子流围绕在核的周围。

麻省理工公开课 - 固态化学导论课程节选

Now there's something very wrong about this diagram, in that it's showing these functions as sort of centralized in the core, and of course that's not how your body is organized.

这张图上有些东西是不对的,图上显示这些功能都围绕着一个核心,当然,这绝不是人体的组织形式

耶鲁公开课 - 生物医学工程探索课程节选

I think of Square as a platform that's going to build an ecosystem around it.

我觉得Square是一个很好的平台,可以围绕它打造一个很好的生态系统。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选