| 词汇 | melanin | 
| 释义 | melanin  noun [ U ] uk/ˈmel.ə.nɪn/ us/ˈmel.ə.nɪn/  黑色素 a dark brown pigment (= substance that gives colour), found in eyes, skin, hair, feathers, etc. It helps to protect the skin against harmful light from the sun. | 
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