太空人

In a sentence

• 我的哥哥梦想成为一名太空人，一起探索宇宙的奥秘。

  My older brother dreams of becoming an astronaut to explore the mysteries of the universe.

  In this sentence, '太空人' refers to an astronaut, someone who travels into space as part of their profession.

• 这部电影讲述了一名勇敢的太空人在外星球上的生存故事。

  This movie tells the story of a brave astronaut surviving on an alien planet.

  Here, '太空人' is used to describe the protagonist who is an astronaut and has survived in space conditions.

• 科学家们正在研究如何让普通人也能像太空人一样遨游太空。

  Scientists are studying how to enable ordinary people to travel space like astronauts.

  In this context, '太空人' refers to professional astronauts, providing a contrast to ordinary people through their ability to navigate space.