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你拉的屎都去哪了？
source link: https://news.cnblogs.com/n/610624/
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如何科学高效的处理几千万吨屎？中国有多少大便下落不明？本文来自微信公众号：回形针（ID：papercliptv），作者：吴松磊，头图来自unsplash，原文标题：《你拉的屎都去哪了？》。以下为视频文字稿：这是你的马桶，这是你的屎。按下冲水按钮，便池内的水位升高会引发排污管道的虹吸效应，把水
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