上皮状的

例句：

1. 1. The skin is made up of several layers, including the epidermis and the dermis.
   皮肤由几层组成，包括表皮和真皮。
2. 2. The epidermis is responsible for protecting the underlying tissue from damage.
   表皮负责保护下面的组织免受损伤。
3. 3. Epithelial cells are responsible for regulating the body's immune response.
   上皮细胞负责调节身体的免疫反应。