R-f amplifier
[电] 射频放大器
🧩 词语组成解析
🗣️ 情景例句
Well, here's the bottle opener, and here's the flashlight.
哦 ，这是开瓶器 ，这是手电筒。
Marvellous.
妙极了。
Please be aware that this is a crucial issue to us.
请了解这一点对我们至关重要。