The first one is Dr. Marvin Chun who teaches the Introduction to Psychology course in the fall and is my competition.

第一名是马文·春博士,他会在秋季教授心理学导论课程,也是我的竞争对手

耶鲁公开课 - 心理学导论课程节选

And to make this more concrete, if a firm is competing against a competitor it can be pretty sure, that competitor is a pretty sophisticated game player and knows that the firm is itself.

再具体点说,如果一家公司在和它的竞争对手竞争,可以肯定其竞争对手一定很老练,这家公司当然也很老练啦

耶鲁公开课 - 博弈论课程节选