It's defined in many ways that "no pain, to gain" paradigm, whether it's education of doctors or in school, as well as generally in the workplace.

它在很多方面定义了“不劳无获，不论是对医生的教育还是在学校，在一般的工作场所也一样。

哈佛公开课 - 幸福课课程节选

These foods are heavily marketed, they tend to be sold in schools, there tend to be mini markets right outside the schools so people can get them on the way to and from schools at many places, and this is the food environment.

这些食品非常热销,一般在学校附近有售,学校外面一般都有小型超市,这样人们就可以在上学放学路上买到它们,这就是所谓的食物环境

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选