总的来说，皮肤的颜色是由皮肤中一种叫做黑色素细胞产生黑色素多少而定的。

Overall skin coloration is determined by the degree to which cells in the skin called melanocytes produce the pigment melanin.

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黑蒜由普通大蒜发酵而成，其中的自然糖分和氨基酸合成一种名为“类黑精”的物质，使大蒜颜色变成黑色。

Black garlic is made from white garlic which is then fermented. The natural sugars and amino-acids then combine to give a black coloring on the cloves known as melanoidin.

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头发的颜色来源——黑色素，是一种光敏材料同时也是一种导体。

Melanin, a pigment that gives hair its colour, is light sensitive and also ACTS as a type of conductor.

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