By the way, you will find that I make quite a lot of mistakes on the blackboard.

顺便说一下,你们以后会发现,我的板书经常出错

耶鲁公开课 - 基础物理课程节选

Well, all this time int on the blackboard I always draw an int as a square.

嗯，向来,我在黑板上用一个正方形表示一个。

哈佛公开课 - 计算机科学课程节选

Aristotle calls this kind of knowledge this kind of practical judgment Phronimos he calls it by the term phronimos that I have on the blackboard.

亚里士多德称这种知识,这种实际判断力,他称之为,像我在黑板上所写的。

耶鲁公开课 - 政治哲学导论课程节选

If you watch me do the thing on the blackboard, it looks very reasonable.

如果你只看我在黑板上的推导,觉得很有道理

耶鲁公开课 - 基础物理课程节选

Like a blackboard that's been completely erased, we now have the very same blackboard, and now we start writing new things on it.

就像是被擦干净的黑板一样，我们得到的是完全一样的黑板，重新开始在上面写东西。

耶鲁公开课 - 死亡课程节选