Aeronomy
n. 高层大气物理学
🗣️ 情景例句
You.
你。
He has lived here for a year.
他在这儿住了一年。[持续到现在的行为]
since ground stations and satellites cannot see everywhere.
因为地面工作站和卫星不可能看到地球上的每一个地方。