Light coming from behind a subject can form a silhouette resulting in object that is completely black against a lighter colored background.

从物体背面照射的光使物体形成全黑的剪影，而背景色调较亮。

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Black is an absence of light, so it is not in the rainbow.

黑色是光所缺乏的颜色，因此它不在彩虹里面。

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Ordinary black objects, by contrast, always reflect a bit of light.

与之相反，普通的黑色物质总是会反射一点点光。

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Police are searching for a light-skinned black man, aged between 30 and 40.

BBC: Man, 90, dies after ?40 robbery at London home

While "Dark Girls" (www.officialdarkgirlsmovie.com) makes its way across the country, Duke and Berry are working on their next documentary, which will deal with light-skinned black women.

CNN: Dark skin is also a problem among African-Americans

He was a light-skinned black man, likely in his fifties.

NEWYORKER: Reverting to a Wild State