BBC地平线系列:你看到我所见了么

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Roses are red, violets are blue but according to the latest understanding these colours are really an illusion. One that you create yourself. 　　Horizon reveals a surprising truth about how we all see the world. You may think a rose is red, the sky is blue and the grass is green, but it now seems that the colours you see may not always be the same as the colours I see. Your age, s...