His brother once sold gold in the black market in the teeth of the wind.

他的哥哥一度冒着风险在黑市倒卖黄金。

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If we like gold because of black skin then there should be a big market for spectacles in China because they have eyes the size of buttons. no pun intended!

如果我们是因黑皮肤而喜欢佩戴金饰，那么中国人眼睛小豆纽扣，所以中国的眼镜市场应该很大，不过大多数人没有鼻子，无法戴眼镜。

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Its new packaging, with the black and gold seal, has helped strengthen this idea of a luxury product, like a very up-market perfume or cognac.

黑色金色相间的新包装更增强了它奢侈品的概念，像高档香水或白兰地酒一样。

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Rhino horn now rivals the price of gold on the black market and is trafficked to Yemen, where the horns are fashioned into handles for prized djambia daggers, and to the Far East, where China is the biggest market.

BBC: The rhino wars of central Kenya