从7位最初的水星宇航员中，其中三位被选为第一次美国载人航天的候选人：约翰.格伦,加斯.格里森和谢泼德。

Out of the seven original Mercury astronauts, three of them were selected as candidates for the first manned U.S. spaceflight: John Glenn, Gus Grissom and Shepard.

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与俄亥俄州民主党参议员约翰•格伦竞选绝非易事。

It is no easy job to run against John Glenn, Ohio's Democratic senator.

《柯林斯英汉双解大词典》

约翰·格伦完成历史性轨道飞行后，友谊7号火箭横穿国家地理杂志封面。

Friendship 7 rockets across the cover of National Geographic after John Glenn's historic orbital voyage.

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