cut-cuticle

例句：

1. 1. The doctor removed the layer of dead skin on her arms.
   医生把她手臂上的死皮层去掉了。
2. 2.The scientist studied the structure of the skin's outer layer.
   科学家研究了皮肤外层的结构。
3. 3.The baby's skin is very soft and smooth, with a thin layer of cuticle.
   婴儿的皮肤非常柔软光滑，有一层薄薄的角质层。