The colouring matter dyed red.
染料染上红色。
General rules of matter colouring
物质显色的一般规律
A soluble colouring matter, as opposed to pigments, which are insoluble.
可溶性的色剂，有别于不能溶解的颜料。
Dye A soluble colouring matter, as opposed to pigments, which are insoluble.
染料可溶性的色剂, 有别于不能溶解的颜料。
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