Fifty years ago when Alan Shepard climbed inside his Mercury capsule to blast off into space, things were looking pretty grim for the fledgling U.S. space program.
五十年前，当艾伦·谢波德进入墨丘利号太空舱等待发射升空时，所有的一切对于羽翼未丰的美国太空计划都显得十分残酷。
Fifty years ago when Alan Shepard climbed inside his Mercury capsule to blast off into space, things were looking pretty grim for the fledgling U. S. space program.
五十年前，当艾伦·谢波德进入墨丘利号太空舱等待发射升空时，所有的一切对于羽翼未丰的美国太空计划都显得十分残酷。
The capsule was part of the Mercury program, and Glenn's space flight took four hours and 55 minutes.
太空舱是水星计划的一部分，格伦的太空飞行了4小时55分钟。
On May 5,1961, under the U. S. space program Project Mercury, he became the first American to be launched into space.
1961年5月5日，在美国太空项目水银计划中，他成为第一个被发射到太空中的美国人。
On May 5,1961, under the U. S. space program Project Mercury, he became the first American to be launched into space.
1961年5月5日，在美国太空项目水银计划中，他成为第一个被发射到太空中的美国人。
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