I am talking at the level of this is Dalton's model, but then there is a meta knowledge here of how you develop models in general.

我一是在谈论道尔顿的模型，但是，还有些知识,关于你如何建立大概的模型。

麻省理工公开课 - 固态化学导论课程节选

Here,the first level: do we focus on weaknesses, which is the disease model,say let's get rid of weaknesses?

第一个层次：,我们是否重视缺点，也就是疾病模型所说的我们要摆脱的缺点？

哈佛公开课 - 幸福课课程节选

The disease model,the optimum level is the zero: let's just be Ok; let's just not hurt.

对疾病模型而言，最优水平是零：,我们都平平安安，别受伤就好了。

哈佛公开课 - 幸福课课程节选