On this guy, I have 10 from the left 10 acting this way, 4 acting that way.

对这个物体,受到一个 10 牛的从左向右的力,10牛的力朝这边,4牛的力朝那边

耶鲁公开课 - 基础物理课程节选

They started with 12 months, and then they drew a bullseye around June.

而是先从12个月开始，然后他们在16月周围画了一个牛眼。

麻省理工公开课 - 计算机科学及编程导论课程节选

Vaccination from cows, and that's where the first vaccine came from.

从牛身上获取牛痘疫苗,这是疫苗首次亮相

耶鲁公开课 - 生物医学工程探索课程节选

And they did that by intentionally infecting calves, by harvesting their skin when they were at a certain point of the disease, and by isolating the virus from the skin of the calves.

他们有意感染很多小牛,当小牛疾病发展到一定程度,就收割牛皮,然后把病毒从牛皮里分离出来

耶鲁公开课 - 生物医学工程探索课程节选