If anything defines American music, he says, it is a spirit of redefinition and reinvention.

VOA: special.2010.07.19

And he defines it almost in terms of laws of physics.

而他解释时运用的大多是物理的法则。

普林斯顿公开课 - 人性课程节选

This is how he defines love.

斯腾伯格如是定义爱。

耶鲁公开课 - 心理学导论课程节选

He brings with it important benefits and in the passage that I'm referring to, he defines himself as a gadfly, everyone will remember that, the gadfly who improves the quality of life in the city.

他强调能带来显著好处,在我将引用的段落中，他自称是只牛虻，众人都将铭记，是牛虻改善了,城邦的生活质量。

耶鲁公开课 - 政治哲学导论课程节选