exoderm

例句：

1. 1. The scientist carefully removed the skin from the animal to study its structure.
   科学家小心翼翼地从动物身上取下皮肤以研究其结构。
2. 2.The outermost layer of the skin is responsible for protecting the body from external factors.
   皮肤的最外层负责保护身体免受外界因素的侵害。
3. 3. Exposure to sunlight can cause damage to the skin's outer layer.
   暴露在阳光下可能会损害皮肤的最外层。