It's not a good thing if you're just looping and checking some condition, but never actually changing the state of the world.

这不是一个好事情，如果你只是循环,检查一些条件，但是永远不要改变世界上的国家。

哈佛公开课 - 计算机科学课程节选

Ok I've never even seen it, so that's good -- you must be better travelled than I.

有一部分，我从来没见过这是什么,很好，你们旅游的比我多哈。

麻省理工公开课 - 化学原理课程节选

If you've never seen it, it's a Kirk Douglas movie that's a good movie, and it's about the mutinies on the Western Front, and it's very good. We used to say, well come to 101 and it'll be a film that'll be shown at 8 p.M.

你要是从来没看过,这是一部科克·道格拉斯的电影,好电影,是关于西线战士反叛的故事,非常好,我们总说,欢迎来101教室晚上八点有电影

耶鲁公开课 - 1871年后的法国课程节选