Rfa
abbr. request for applications 应用要求; radio frequency authorization 无线电频率授权; radio frequency attenuator 无线电频率衰减器; request further airways 要求更远的航线
🗣️ 情景例句
It's so nice of you to come.
你能来真好。
Lights glisten.
电灯亮了起来。
It's a book.
一本书。