Normally when keratinocytes are exposed to thesun's rays, they produce a hormone that leads to the manufacture of askin-bronzing pigment.
Normally when keratinocytes are exposed to thesun's rays, they produce a hormone that leads to the manufacture of askin-bronzing pigment.
在通常情况下，当角质化细胞暴露在太阳射线下的时候，它们产生能够制造青铜色的皮肤的荷尔蒙。