"He's been down there to my knowledge twice, but I don't think he's really done that much."

VOA: standard.2010.06.10

There's so much knowledge that that's built on that,

建立在这方面的知识很多，

没有特效的话 - SpeakingMax英语口语达人

And the question that preoccupies developmental psychologists is how do we come to have this knowledge, and in particular, how much of it is hard-wired, built-in, innate.

发展心理学家们所关心的问题,就是我们如何获得这些知识的,特别是,这其中有多少是固有的,内在的,天生的

耶鲁公开课 - 心理学导论课程节选

Eric Halgren says, despite our growing knowledge, much about the brain remains unknown.

VOA: standard.2010.01.28

But much of the exchange with Thrasymachus turns on the problem of what kind of knowledge justice involves, and justice is a kind of knowledge.

而与，Thrasymachus，交锋,所激发出的问题是,何种知识是正义所包含，及正义是一种知识。

耶鲁公开课 - 政治哲学导论课程节选

And,communities have a much greater knowledge about how to reduce risks.

VOA: standard.2009.12.26