And to measure the intensity of unequal sharing, we take the difference in electronegativity, which I am going to use the Greek symbol chi for.

要度量非平均的程度，我们考虑电负性的差异，我要用希腊语第22个字母chi来表示电负性。

麻省理工公开课 - 固态化学导论课程节选

If I am going to use this for my child Are there different types of children being represented I have several parents who come to me at the regular basis Asking me:"what software is out there that would be fun for my child And is also not biased towards, or just kids of one nationality represented?

如果我买来给我的孩子,这款软件有没有各种不同类型的孩子的形象？,有几位父母经常来拜访我,他们问我说：“现在市面上都有什么好软件,对孩子来说会很有趣,而且没有偏向，或者说不仅仅面向一个国籍的？

麻省理工公开课 - 媒体、教育、市场课程节选