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。

youdao

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？

youdao

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。

youdao

Most of the money will go towards working with industry on new technologies to make human space flight safer.

VOA: standard.2010.04.15

"China is only the third country to have human space flight capabilities.

VOA: standard.2010.04.21

"The United States spends on human space flight.

VOA: standard.2010.04.21

The UN marked April 12 as the first annual International Day of Human Space Flight.

FORBES: Will Russia Win the Next Space Race?

Second, the success of all human space flight programs is intimately tied to the success of Station.

WHITEHOUSE: Jacob J. Lew Testimony to House Science Committee, 08/06/1998 | The White House

In seeking to accommodate Station cost growth within human space flight, we will not compromise Space Shuttle safety.

WHITEHOUSE: Jacob J. Lew Testimony to House Science Committee, 08/06/1998 | The White House