柯林斯词典space shuttle (space shuttles) 1. N-COUNT A space shuttle or a shuttle is a spacecraft that is designed to travel into space and back to earth several times. 航天飞机 返回 space shuttle剑桥词典a vehicle in which people travel into space and back again, sometimes carrying a satellite or other equipment into orbit (= a curved path through space ) 航天飞机 返回 space shuttle