abbr. fundamental studies in computer science 计算机科学基础研究; frequency shift communications system 移频通信系统; fleet satellite communications system 舰队卫星通信系统; flight service communications system 飞行服务通信系统
🗣️ 情景例句
Neither.
都不是。
As soon as she quit the room he returned to it.
她刚离开房间,他回来了。
The trickle became a stream; the stream has now become a torrent.