skin surface

• 皮肤表面

skin surface的用法和样例：

例句

1. Blackheads generally appear as small, black holes on the skin's surface.
   黑头通常显示为小，黑洞的皮肤表面。
2. Bacteria that normally live on the skin also play a role in acne development.
   正常寄生于皮肤表面的细菌也是引发痤疮的因素。