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航天飞机是一种能够运载器材和人员在地球和宇宙空间中往返多次的宇宙联络飞船。同时还能够用来在宇宙空间中对星际进行观测及从事建设宇宙空间站的工作。
The shuttle is a space-borne spacecraft that carries equipment and personnel many times round the earth and in space. It can also be used to observe the interstellar space in space and work on building a space station.