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再叠加 Reddit 的投票排序机制（高赞靠前）和楼中楼对质，它等于把同一问题的多种答案做了一个粗糙但有效的群体筛选。
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An astronomer gave us tips for watching the imminent total lunar eclipse
A year later, the pattern continues. Now, it’s the work of Dutch abstract painter Piet Mondrian. And this time, the estate’s legal argument is more Dada than De Stijl.