Spasur
宇宙监视系统(=space surveillance system )
🗣️ 情景例句
How are you doing?
你怎么样？
United's Flight 102 leaves at 9:20.
联合公司的102次班机9点20分起飞。
Right. They're running and jumping all the time.
对，他们老是跑啊跳的。