Cathamplifier
[电] 反对放大器
🗣️ 情景例句
In any case, you should prepare for the worst.
无论如何你要做好最坏的打算。
He who imagines that he has knowledge enough has none.
自以为学识丰富的人是没有什么学问的人。
Can we do anything to help?
用我们帮忙吗？