shut·tle¹/`ʃʌtḷ; ˈʃʌtl/ n [C] 1 a plane, bus, or train that makes regular short trips between two places 〔定时往返于两地之间的〕穿梭班机[班车、列车]: the Washington — New York shuttle 华盛顿 — 纽约往返班机 2 a SPACECRAFT that can travel into space and return to Earth more than once 太空穿梭机,航天飞机: the launch of the space shuttle 太空穿梭机的发射