| 例句 |
The production of melanin in the skin is stimulated by exposure to the sun.皮肤暴露在阳光下就很容易生成黑色素。Melanin is a pigment that gives color to skin and fur.黑色素是一种显示在皮肤和毛皮上的色素。Melanin is the dark brown pigment of the hair, skin, and eyes that is present in varying amounts in every human being.黑色素是头发、皮肤和眼睛中的黑褐色色素，每个人体内或多或少都有这种色素。Dark pigment in the skin provides an effective shield against the sun.皮肤中的黑色素能够有效地阻挡阳光。Melanin is the dark brown pigment of the hair, skin and eyes.黑色素是头发、皮肤以及眼睛中的深棕色色素。 |