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We wanted to be in great shape, we wanted to be able to cope with zero gravity, we wanted to be able to cope with accelerations and decelerations and so on. So all of us trained so that we were probably in the best physical condition we had ever been in up until that point.

我们想要保持良好的体型，我们想要能够应对零重力，我们想要能够应对加速和减速等等。所以我们所有人都接受了训练，所以在那之前我们的身体状况可能是最好的。

— Alan Shepard 艾伦·谢泼德