epithelial cancer

例句：

1. 1.Epithelial cells are responsible for the formation of skin, hair, and nails.
   上皮细胞负责皮肤、头发和指甲的形成。
2. 2. Epithelial cancer is a type of cancer that starts in the lining of the body's organs.
   上皮癌是一种起源于身体器官内层的癌症类型。
3. 3. The risk factors for epithelial cancer include smoking, obesity, and exposure to certain chemicals.
   上皮癌的风险因素包括吸烟、肥胖和某些化学物质的暴露。