美国宇航局的宇航员在完成绕月球旅行后返回地球. NASA astronauts return to Earth after completing a trip around the moon.

美国宇航局的太空人完成了绕月球旅行后返回地球. NASA astronauts have returned to Earth after completing a trip around the moon. 任务标志着太空探索的重要一步, 并结束了宇航员在太空中的时间. The mission marks a significant step in space exploration and concludes the astronauts' time in space.