“黑色素”的英语

皮肤暴露在阳光下就很容易生成黑色素。The production of melanin in the skin is stimulated by exposure to the sun.雀斑不过是高浓度的黑色素.Freckles are simply concentrations of melanin.促进血液循环, 加速黑色素的分解与吸收.Promote the blood circulation, and accelerate th...