R-f amplifier
[电] 射频放大器
🧩 词语组成解析
🗣️ 情景例句
Are you sure you know where you're going?
你真认识你要去的地方吗？
When does it arrive?
什么时候到那儿？
No, I need to talk to the home office.
不，我得先跟总公司谈谈。