R-f amplifier
[电] 射频放大器
🧩 词语组成解析
🗣️ 情景例句
she's still alone, without her family.
她仍是孤单单的，找不到家。
I ask him to do the washing now.
我要求他现在做洗涤工作。
She won't have any trouble.
对她不会有什么困难的。