The problem with it is that you also can spread other diseases in that way.

这个方法的问题是,其它疾病也会通过这种方式来传播

耶鲁公开课 - 生物医学工程探索课程节选

They take it, the vaccine itself, the virus, reproduces in their gut and they can actually spread it to other children in the same way that they spread the disease where you've got children that are maybe at school or at childcare.

他们服用了疫苗,则疫苗菌本体,病毒本体便在他们的体内进行繁殖,实际它们以同样方法传播到其他孩子体内,当你去学校或者幼儿园,接你的孩子的时候,这些病毒正在传播

耶鲁公开课 - 生物医学工程探索课程节选

By the way, when we do grading for the class, what we're going to do is to spread the grading around the teaching fellows so that everybody's work is going to get graded evenly by all the teaching fellows.

还有,等到课程评分的时候,我们就会,让几位助教轮流来做,尽可能让每一位助教,都给大家的作业评分

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选