It uses average yearly data in its computations, and focuses on only two major pollutants - nitrogen and phosphorous.

VOA: standard.2010.08.04

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

It focuses very much on the family relationships, on the jealousies, very little reference to a divine perspective.

它主要集中于家庭关系和妒忌，基本不涉及与神性方面。

耶鲁公开课 - 旧约导论课程节选

Sabbath Lily The first quotation from Sabbath Lily of course focuses on the eyes, and it is not hard to read into Haze Motes's name that the trope of sight is going to be important.

第一句话来自,说的当然是关于眼睛，通过看Haze，Motes的名字,不难发现,在视线上的修辞将会很重要。

耶鲁公开课 - 1945年后的美国小说课程节选