And he winds up playing space cowboy. 而他正在屋子里玩太空牛仔。
The fact of space shuttle retirement shows the US has abandoned easygoing " cowboy economy ", and adopted the " spaceship economy " with a core concept of efficient use of resources and recycling. 航天飞机的退役意味着美国航天放弃了逍遥自在的牛仔经济,转而采用以资源的高效利用和循环利用为核心的飞船经济。