Then they'll give them two other cities that they've never heard of and ask them how far apart they think they are.

然后测试者会给被测试者另外两个城市,他们同样没有听说过,然后问被测试者两座城市之间的距离。

耶鲁公开课 - 金融市场课程节选

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

A food frequency--by the way, you also have the issue of whether the particular twenty-four hours that a person is interviewed is representative of their diet overall, because you can imagine how much your food intake varies from day to day.

食物摄取频率,顺便说下,还有一个问题,就是在选取的24小时里,测试者,是不是对总体有代表性,因为你可以想象,每天事物的摄入量都是不同的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And what he did there was went to the students, had them take a test and then go to their teachers after and tell the teachers, "Your students just took a new test that was devised-- " a new academic test which is called "the fast spurters' test".

去到学生中间，让他们接受一次测验,然后去找他们的老师并告诉他们，“你们的学生刚接受了一个新测试-,一种新的学业测试，叫作快速迸发者测试。

哈佛公开课 - 幸福课课程节选