And that's because it's easier to test small things than big things. And it's easier to debug small things than big things.

这是因为对小一点的对象,进行测试比对大一点的对象进行测,试要简单多了，调试也是如此。

麻省理工公开课 - 计算机科学及编程导论课程节选

All right, so we've tested it, and we haven't tested it yet we have tested it but, we haven't seen it, well, you know what I'm going to do?

好，我保存下，这有点儿烦，不过能让字体更大点儿,好，我们已经得到了要比较的对象了，但是还没对它们进行比较测试？

麻省理工公开课 - 计算机科学及编程导论课程节选

Basically, injecting it into some test subjects, making sure that they didn't get diseased from it and looking at antibody responses to see if it worked and it did.

他们把疫苗接种到测试对象体内,确定接种者不会感染疾病,同时观察抗体的应答反应,了解疫苗是否有效

耶鲁公开课 - 生物医学工程探索课程节选