And Jenner made the observation that others had made, that people that were around cows a lot tended not to get smallpox.

詹纳观察到的现象别人也曾观察到,就是经常接触奶牛的人不容易患天花

耶鲁公开课 - 生物医学工程探索课程节选

So I would say that anything on the Upper East Side tends to be not as accessible.

所以，我想说上东区的任何东西都不是特别容易让人接触到的。

上东区的瑜伽老师 - SpeakingMax英语口语达人

In addition to Jenner, there was a farmer named Benjamin Jesty, who recognized that farmers, being in contact with cows, didn't get disease as often as non-farmers did.

除了詹纳,还有个叫本杰明?加斯特的农民,他发现与奶牛接触的农民,不像其他人那样容易患天花

耶鲁公开课 - 生物医学工程探索课程节选