skin formation

例句：

1. 1. The process of skin formation is crucial for a healthy immune system.
   皮肤形成过程对于健康的免疫系统至关重要。
2. 2. During the skin formation stage, cells are arranged in a specific pattern.
   在皮肤形成阶段，细胞以特定的模式排列。
3. 3. Skin formation is influenced by various factors, including genetics and environment.
   皮肤形成受到各种因素的影响，包括遗传和环境。