Electronic amplifier
[电] 电子放大器
🧩 词语组成解析
🗣️ 情景例句
He'll be back soon.
他很快就回来。
That's not a good idea!
这样不太好吧！
After that they pressed a piece of paper on top, and printed a whole page of a book.
然后，再把一张纸压在上面，就印出了一整页书。