The only important thing to realize about that is that these differences start to occur very early in development.

唯一需要引起重视的是,这些差异发生在,发育阶段的早期

耶鲁公开课 - 生物医学工程探索课程节选

In fact, some cells are very different from the cells that are proliferating early in development.

事实上,某些细胞同发育早期所增殖的细胞,已经有天壤之别

耶鲁公开课 - 生物医学工程探索课程节选

This surface layer thickens at an early stage in a mouse after 8 days of development.

发育8天后，老鼠早期胚胎的,外胚层开始增厚。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

We can see the early signs of ear development Start with the thickening of the outer layer of the embryo, this layer is called the ectoderm.

大家知道，耳朵发育的早期特征,是胚胎外层膜的增厚，这层膜也叫外胚层。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

We were looking for the mouse cells the mouse embryonic stem cells that we had coaxed into early ear cells whether they were able to form ear cells.

再来看看那些经诱导,发育成早期耳细胞的,老鼠胚胎干细胞,能否发育成耳细胞。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选