So, when I threw that thing up and you caught it, what you are doing mentally was immediately figuring out where it started and at what speed.

所以当你接住我抛出的物体时,你大脑里的反应就是,立刻弄清它的初位置以及初速度

耶鲁公开课 - 基础物理课程节选

These stunts are designed to challenge the contestants both physically and mentally.

这些特技项目专为在体能和精神上,挑战参赛者而设计。

耶鲁公开课 - 公正课程节选

Well, crossword puzzles aren't a very deep subject, and we might wonder whether or not we would do better if we were engaged in something more mentally challenging than that.

填字游戏不算很深奥的东西，我们也不知道自己能否做得更好,如果我们去做,比填字游戏更富挑战性的事情。

耶鲁公开课 - 死亡课程节选

So paideia referred to the education of the young man, - both mentally, but militarily-- so you were taught to fight--and culturally; you might be taught other things about culture.

所以Paideia指的是年轻男子的教育，不止思想教育，还有军事教育-,学习如何作战，还有文化教育;,学习文化的各个方面。

耶鲁公开课 - 新约课程节选

So it feels a little backward mentally perhaps, 1 but this is saying, "do this block of code as long as n is less than 1."

所以它感觉可能有点迟缓，但是它指明，“只要n小于,执行这段代码“

哈佛公开课 - 计算机科学课程节选