黑色素使皮肤变黑是人被晒黑的原因。

Melanin darkens the skin and is the cause of suntan.

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欧盟官员们被晒黑的肤色在布鲁塞尔的灰暗天空下逐渐消退，他们有充分理由表示忧虑。

Eurocrats have reasons to be anxious, as their tans fade under leaden Brussels skies.

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的确，他那被晒黑的脸庞、双臂以及他消瘦、结实的身体，活脱脱像亿万其他的农民。

Indeed, his sunburnt face and arms and his slim, strong body are just like those of millions of other Chinese farmers.

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