n.黑色素;
例句:
It prevents and slows down excessive production of melanin.
能防止和延缓黑色素的过旺分泌.
The more melanin on thesurface the deeper the tan.
生成的黑色素越多,晒得越深.
Vitamin C can dilute melanin and quickly whiten the skin.
维C能淡化黑色素,令肌肤迅速增白.