Critics say the national exam is biased, since it presumes a level of knowledge and cultural background that students from working class families may not have.

VOA: standard.2010.02.02

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

This level of knowledge, these layers of knowledge, lead to very different play in the game.

这个是知识层面的问题了,这些知识层面会导致不同的结果

耶鲁公开课 - 博弈论课程节选