The first launch of Falcon 9 could change the course of human space flight.
猎鹰9号的首次发射可能会改变人类太空飞行的进程。
This year is human space flight 50 years.
今年是人类太空飞行50周年。
But why spend money on human space flight at all?
但是，归根结底，为什么要花钱在载人航天飞行上呢？
It is equally conceivable that the fantasy-made-reality of human space flight will return to fantasy.
人们同样认可，人类太空飞行中由幻想构成的现实将重归于幻想。
It is equally conceivable that the fantasy-made-reality of human space flight will return to fantasy.
人们同样认可，人类太空飞行中由幻想构成的现实将重归于幻想。
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