R-f amplifier
[电] 射频放大器
🧩 词语组成解析
🗣️ 情景例句
Dad and I were planning to go to the game,
爸爸本来要和我一起去，
He has pamphlet.
他有一本小册子。
Captain Fawcett's first passenger was a doctor who flew from Birmingham to a lonely village in the Welsh mountains.
弗西特机长的第一名乘客是位医生，他从伯明翰飞往威尔士山区一个偏僻的村庄。