Ostrom's research has focuses on the interaction of people and natural resources and how common property can be successfully managed by those groups using it.

VOA: standard.2009.10.12

PROFESSOR: And this is a question based on where we left off on Wednesday -- we were talking about Coulomb's force law to describe the interaction between two particles and good job, most of you got this correct.

教授：这是我们上次最后,留下的问题-我们讲到,描述粒子间相互作用的,库伦定律，很好,大部分人都做对了。

麻省理工公开课 - 化学原理课程节选

On the one hand, the optimists might say, "Even when we throw in the extra interaction effects, even the negative interaction effects, the overall nature of the human condition is positive.

一方面，乐观主义者可能说，“就算我们把另外的相互影响，就算把负面的相互影响算进去，人类处境的总体本质还是积极的。

耶鲁公开课 - 死亡课程节选

That infection occurs because of a ligand receptor interaction on the cell surface where the virus itself is the ligand and it takes advantage of a receptor that's expressed on the cell surface.

感染的发生是由于,配体与细胞表面受体相互作用,病毒是配体,它利用了在,细胞表面表达的受体

耶鲁公开课 - 生物医学工程探索课程节选