They are born reciters, great memory retainers, diary keepers, letter exchangers and letter savers, history tracers and debaters, and outstaying all the rest they are just great talkers."

他们天生善背,记忆超群,爱写日记,乐于书信,尤喜收藏信件,爱追溯历史,天生的辩论家,总之他们就是很健谈"

耶鲁公开课 - 美国内战与重建课程节选

So what would be the letter A in binary inside of a computer's memory when you hit the letter A on the keyboard, for capital A?

当你敲击键盘上的字母A时,那么在计算机二进制的存储中,字母A是什么样的呢？

哈佛公开课 - 计算机科学课程节选