名词
中文翻译：黑色素
同义词：
['melanin', "melanocyte例句：1. The skin's melanin protects it from the sun's harmful rays.（皮肤的黑色素保护它免受太阳有害射线的伤害。）"]
例句：
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1. The skin's melanin protects it from the sun's harmful rays.
皮肤的黑色素保护它免受太阳有害射线的伤害。
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2. Melanocytes are responsible for producing melanin in the skin.
黑色素细胞负责在皮肤中产生黑色素。
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3.During the dark period of the year, the skin's melanin production increases to protect against ultraviolet radiation.
一年中的黑暗时期，皮肤的黑色素生产增加以保护免受紫外线辐射。