There's this Professor Florida, who has this nice PDF article on Google that says the world was spiky.

有一位教授Florida，写过一篇很好的，谷歌上的PD F文章，说世界时不平坦的。

youdao

There's this Professor Florida, who has this nice PDF article on Google that says the world was spiky.

有一位教授Florida，写过一篇很好的，谷歌上的PD F文章，说世界时不平坦的。

youdao