I don't need to say too much probably about why cells need to communicate with each other but this is a schematic version.

我可能无需讲太多关于,细胞之间需要通讯的原因,这是一张示意图

耶鲁公开课 - 生物医学工程探索课程节选

Go a little bit further with this schematic and talking about what insulin does.

我要说的东西离这个例子有点远,来讲讲胰岛素作用

耶鲁公开课 - 生物医学工程探索课程节选