What's the meaning of this little detail of Zooey's appearance?

左伊外表上的这个小细节是什么意思呢？

耶鲁公开课 - 1945年后的美国小说课程节选

I mean, on the outside they all look pretty similar,

我是说，从外表上来看，它们看上去很相似，

伦敦的金融中心地 - SpeakingMax英语口语达人

There is typically a council of aristocrats; that is the outfit that counts.

只有典型的贵族议会,至少外表上是这样的

耶鲁公开课 - 古希腊历史简介课程节选

Because if they are reared by the same parents,one could argue, "Well they came out very similar because same environment: they look the same; they go to the same schools; " same parents,and so on."

因为如果他们由相同的父母抚养，人们会说，“他们这么相似，是因为有同样的成长环境：,他们外表一模一样，上一样的学校;,有同样的父母，等等“

哈佛公开课 - 幸福课课程节选

So this cell, wherever it's setting, wherever it is positioned within the nervous system let's say in the cortex somewhere or the outside surface of the brain is able to communicate with a region of the brain that's in this direction, a region in this direction, a region in this direction, a region in this direction.

所以这个细胞 无论它在何处,无论它在神经系统中安身何处,就比方说它位于大脑皮层上吧,即位于大脑外表面上的某处,它可以同,这一方向上的脑域进行交流,也可以是这个方向,也可以是这个方向,也可以是这个方向

耶鲁公开课 - 生物医学工程探索课程节选