Cathamplifier
[电] 反对放大器
🗣️ 情景例句
Why were you out of work for so long?
你为何这么久没有工作？
Is this your pen? I found it under the desk.
这是你的笔吗？我在桌下捡的。
Why can't you do something about it? Can you change it?
干吗你不想点办法呢？你能换掉它吗？