And it focuses on the theory and the application of positive psychology in various professional domains.

教学重点放在,积极心理学理论,及在各行各业的应用。

哈佛公开课 - 幸福课课程节选

But the problem was that both John and I are interested in both theory and applications.

但问题是,约翰和我,对两者的理论及应用都十分感兴趣

耶鲁公开课 - 金融市场课程节选