Note: The original, shorter version of this post has been restored below.
作者注:最初的、比较短的这篇文章的版本已经重新保存在下面。
Editor's note: The original version of this story misstated Dr. Markel's name.
编者按:这篇文章的原文标错了马克尔的名字。
Editor's note: The original version of this story misstated Dr. Markel's name.
编者按:这篇文章的原文标错了马克尔的名字。
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