The fastest a spaceship has returned to Earth with astronauts aboard was the 24, 700 MPH (39, 700 KPH) re-entry of Apollo 10 in 1969, Byerly added.
最快的一艘返航载人航天飞机是1969年返回地球时速为24700英里(39700千米)的阿波罗10号，拜尔利补充说。
Two pilots aboard the fledgling spaceship and two on the 747 put their lives on the line to find out.
两名飞行员乘坐飞船和羽翼未丰的747提上了自己的生命，找出两个。
Two pilots aboard the fledgling spaceship and two on the 747 put their lives on the line to find out.
两名飞行员乘坐飞船和羽翼未丰的747提上了自己的生命，找出两个。
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