In problem set 5, last year I took a stroll around campus with one of the teaching fellows with his digital camera, we shot photographs of identifiable but non-obvious spots on campus and then like an idiot I always seem to erase my compact flashcard accidentally.

在习题集5中,去年我和另一位老师一起带着数码相机在校园里闲逛，我们在校园里没有目的地乱拍,像一个傻瓜一样,我一不小心清空了,我的便携闪存卡。

哈佛公开课 - 计算机科学课程节选