"I learned you can heat chicken feathers and use it as hydrogren to replace gas in your car."

VOA: standard.2010.04.25

So unlike Scratch where you pretty much had to say "repeat" ten times or whatever, or forever where it's just "forever" with for loops, -- can you actually specify a finite number of iterations -- and as I learned 15 years ago, finite is important.

所以不像Scratch，你大致上需要用,“repeat“10次或更多，或者需要不断地使用当它,是死循环时，你们能够指定出一个有限的迭代次数-,像我15年前学的，有穷的是重要的。

哈佛公开课 - 计算机科学课程节选

You can interpret it as "Ok, so what have I learned?

你可以解读为“我学到了什么？

哈佛公开课 - 幸福课课程节选

"As I have made clear the primary objective of the committee will be to identify lessons learned.

VOA: standard.2009.06.15

How to fix it. When I think about debugging, I think about it in terms of what you learned in high school as the scientific method.

怎么来修复bug，当我谈论到调试的时候，我认为你们应该依照在高中,在科学方法学中学过的。

麻省理工公开课 - 计算机科学及编程导论课程节选