VOA慢速英语:空间站任务完成后 SpaceX宇航员航天器安全着陆

mission – n. an important task, usually involving travel somewhere

capsule – n. the part of a spacecraft that carries people

dock – v. to link up with or attach to

dummy – n. a model or reproduction of a person

sensor – n. piece of equipment designed to find light, hear, etc.