塔斯卡卢萨市长马德克斯告诉 CNN，龙卷风几乎夷平这个城市的一个又一个街区。

Tuscaloosa Mayor Maddox told CNN that the twister literally obliterated blocks and blocks of the city.

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这项研究结果最早发表在由圣安德鲁斯大学的行为生物学家凯文·雷兰德 和 卢克·伦德尔组织的比赛上。

The finding emerged from a tournament set up by the behavioral biologists Kevin Laland and Luke Rendell of the University of St. Andrews.

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编者按：埃里·克西斯。德。贝卢瓦是一位住在德克萨斯州奥斯丁的法国人。

Editor's note: Alexis DE Belloy is a Frenchman who lives and works in Austin, Texas.

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