Outer space
01
外太空, 宇宙空间
the space outside the earth's atmosphere
例子
Outer space is characterized by the absence of air, so astronauts must wear spacesuits to survive the vacuum and extreme conditions.
外层空间的特点是缺乏空气，因此宇航员必须穿着宇航服才能在真空和极端条件下生存。
