manned spaceship短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 载人宇宙飞船 航天事业 You are working on sending amanned spaceshipto Mars.你正在从事向火星发射载人宇宙飞船的工作。 It launched a second manned space flight last year and plans to eventually land a person on the moon.去年，它发射了第二艘载人宇宙飞船，并计划最终将一名宇航员送上月球。