Further down this line here are embryonic or let's say adult brain stem cells.

沿着这条线再往后一些就是胚胎,或者就说是成人脑中的干细胞吧

耶鲁公开课 - 生物医学工程探索课程节选

Controversial in the sense that maybe it's not a good thing to do, or there might be some limits on what we want to do there in terms of integrating machines with people's brains.

它的争议性在于这可能并不是一件好事,在我们想往人脑中植入机械时,会不会受到某种限制

耶鲁公开课 - 生物医学工程探索课程节选

Our brain has 100 billion neurons.

人脑约有一兆亿个神经元。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选