outer ear

基本解释

Birds are even more mysterious,because here we do not even see an outer ear.
鸟类甚至更为神秘，因为我们甚至看不到它们有一个外耳。
We are aware that at the end of the central hole in this outer ear there is something called the middle ear, with an eardrum and a few little bones.
我们知道，在外耳中孔的底部有东西称为中耳，它由一个耳鼓和一些小骨骼构成。
Sitting just a sixth of an inch from the eardrum, closer than any other hearing aid, it maximizes use of the entire outer ear to capture sound naturally.
它比市面上任何助听器离耳鼓都近，仅相距六分之一英寸。这样它可以最大限度地在自然状态下利用外耳来捕捉声响。

But you can use a swab or cloth to clean the outer part of the ear.
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
With the head upright, take hold of the outer part of the ear.

The soft-touch outer material around the ear-hooks makes them feel nice in the hand, and adds to the sporty look.
ENGADGET