So what I've said so far is, a particle moving in time from point to point can be represented by a graph, x versus t.

到目前为止,我说过,一个质点随时间的连续运动,可以用一幅x-t图来表示

耶鲁公开课 - 基础物理课程节选

Under the gold standard your dollar bill represented so many ounces of gold and you were supposed to be able to always get that gold.

在金本位制度下,你的纸币表示着,很多盎司的金子,并且你可以一直兑换那些金子。

耶鲁公开课 - 金融市场课程节选

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