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

Without those other things running around we would have a good sort of model of homophonic texture, sort of block chords changing in that fashion.

如果没有这个其他东西单独进行我们将会获得一种不错的同音材质，一种阻断的和弦在改变。

耶鲁公开课 - 聆听音乐课程节选

Changing the diet of populations is a pretty good idea and it's the kind of thing that could help individuals certainly lead healthier, happier lives, but also could change things like healthcare costs for a whole country, so these are big, big factors.

改变大众的饮食是个很好的想法,它不仅可以让人们过上更健康幸福的生活,还可以改变整个国家的医保费用,所以饮食是个非常非常重要的因素

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选