Who took a ball, the vesicle, and he transplanted from the embryo, the ear region, to a limb.

他从胚胎的耳朵部分中,取出一个泡囊移植到腕部。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

And this dimple is later forming a vesicle, a round ball, that goes on and forms the ear.

随后形成一个圆球状的泡囊，直至发育成耳朵。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

And then we let the ball develop into a fully grown inner ear.

接下来，我们让泡囊发育成一个成熟的内耳。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

And I mentioned that the ear develops from a little ball.

前面我曾说过,耳朵是由一个小小的泡囊发育而来的。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选