Aerogeography
航空地理学
🗣️ 情景例句
I was a member of the debate team.
我是辩论队的成员。
From across the room, David cast a glance at his brother.
隔着房间，大卫瞥了一下弟弟。
when a significant number of people are living permanently in space.
如果有相当数量的人永久性地住在太空，