平均斯坦和极端斯坦_什么是“斯坦”，名称从何而来？

平均斯坦和极端斯坦 ibreakstock/Shutterstock ibreakstock /快门 Are you a “Stan”? You’ve likely seen this term on social media sites, but what does it mean? We’ll explain, and equip you with the knowledge to spot

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