如何计算平均值公式

Zhu Cixiang wore a winged crown, red dragon-patterned casual clothes, a black fox-collar cloak, jade belt and black boots, and a long sword hanging from his waist. He was riding on a tall white horse. His face was light, neither angry nor happy, despite his age. It's not big yet, but it already has the majesty of the heavenly family.

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