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。

youdao

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。

youdao

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。

youdao