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1·It sounds complicated, but really a supernumerary rainbow is one with smaller repeating rainbows inside it.

听起来似乎复杂，但真正的复式彩虹是在其一个彩虹内部还有一个较小的彩虹。

2·So as the saying goes, roses are red, violets are blue, and purple in a rainbow is a supernumerary hue.

所以正如俗话说红玫瑰紫罗兰，蓝紫的彩虹就是多余环。