1961年5月，艾伦.谢泼德——NASA水星计划最初的7位宇航员之一——正准备成为美国宇航第一人。
On May 5, 1961, NASA astronaut Alan Shepard ? one of the original seven Mercury spaceflyers ? was ready to become the first American in space.
而一些在美国历史中赫赫有名的人物，如阿尔伯特·爱因斯坦和登上月球的第一人尼尔·阿姆斯特朗，均未能进入前十名。
Some of the most notable names of US history such as Albert Einstein and Neil Armstrong, the first man to walk on the Moon, did not make the top 10.
一名61岁的美国人将有望成为在没有防鲨笼保护的情况下游过古巴岛到美国佛罗里达州的第一人。
A 61-year-old American is hoping to become the first person to swim from the island of Cuba to Florida in the United States without a shark cage to protect her.
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