Often by looking at extremes it throws into sharp contrast things we naturally take for granted.

通常对极端情况的研究,会与我们日常所坚信的信念,形成强烈的反差

耶鲁公开课 - 心理学导论课程节选

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