网传一沙漠景区沙下埋20厘米三角钉

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这是一个从 https://www.baidu.com/s?wd=%E7%BD%91%E4%BC%A0%E4%B8%80%E6%B2%99%E6%BC%A0%E6%99%AF%E5%8C%BA%E6%B2%99%E4%B8%8B%E5%9F%8B20%E5%8E%98%E7%B1%B3%E4%B8%89%E8%A7%92%E9%92%89 下的原始话题分离的讨论话题