And a sigma bond forms any time you have two orbitals coming together and interacting on that internuclear axis.

当你把两个轨道合在一起,并在核间轴上有相互作用时,就形成了sigma键。

麻省理工公开课 - 化学原理课程节选

And these are the qualities taken together that Socrates calls justice, that can only be achievedwhen reason is in control of the appetites and desires.

而这些特质合在一起,便是苏格拉底所谓的正义，达成的方法,仅有透过由理性控制欲望与渴求。

耶鲁公开课 - 政治哲学导论课程节选

They are all bound.

电子都被键合在一起。

麻省理工公开课 - 固态化学导论课程节选