It's as if Milton were paralyzed, almost, at this moment in his choice between these various alternatives.

弥尔顿似乎被麻痹了，在他在几个可行性中作出选择的时候。

耶鲁公开课 - 弥尔顿课程节选

He produced an oral polio vaccine from an attenuated virus.

他利用减毒病毒制得口服小儿麻痹症疫苗

耶鲁公开课 - 生物医学工程探索课程节选