R-f amplifier
[电] 射频放大器
🧩 词语组成解析
🗣️ 情景例句
It won't hurt you to try it.
你不妨试试。
A little labour,much health.
适量的劳动大有益于健康。
The curious bottle, which now adorns the bookcase in his study, was his first and last purchase of rare cosmetics.
在他书房的书柜里摆着那瓶形状古怪的香水泥就是他第一次也是最后一次购买的稀有化妆品。