spacefarer

例句：

1. 1. The spacefarer's journey is filled with excitement and anticipation.
   这位太空旅行者的经历充满了兴奋和期待。
2. 2.The astronaut spent months in isolation on the International Space Station.
   这位宇航员在国际空间站上度过了数月的隔离生活。
3. 3.Cosmonauts are trained to survive in extreme conditions, including zero gravity.
   宇航员接受了在零重力条件下生存的训练。