Because if Nasa is going to rely on the private sector for its needs, you know, to have human presence in low-Earth orbit, it damn well better be sure that these companies it places its contracts with are viable.
因为如果美国宇航局要依靠私营企业来满足它的需求,也就是在低地球轨道上有人类存在,它最好能够确保与它

同的这些公司是靠得住的。