And I end up going back and doing unit testing anyway, to try and figure out why it doesn't work. So over the years, I've just convinced myself I might as well start where I'm going to end up.

第一次从来不会正常运行,因此无论如何我还要回头去做单元测试,找找哪儿出错了，因此经过这么多年，我已经说服自己既然一定要做单元测试,那么还是一开始就做最好了。

麻省理工公开课 - 计算机科学及编程导论课程节选

Opponents of animal testing are quick to point out that it's not a humane way to learn scientific facts.

动物实验的反对者很快就指出，利用这种方法得到科学事实是不人道的。

需要动物实验吗？ - SpeakingMax英语口语达人