肚脐眼的英文：
cornea

“I like her bellybutton,”he asserted
“我最欣赏她那肚脐眼儿。”他表态了。

They accommodate by greatly changing the curvature of the cornea.
它们由大大地改变角膜曲率的方法来调节。

Blistering of the cornea can also occur.
起泡，眼角膜也可以发生。

The condition of having a dense white opacity of the cornea.
角膜白斑眼角膜带有深厚的白色不透明物的状态

They smooth out themicroscopically uneven cells of your cornea.
他们使你角膜的精微不平坦细胞平滑。

In advanced stages the opaque corneas may ulcerate and even perforate
在疾病后期，不透明的角膜可能产生溃疡，甚至穿孔。