Af amplifier
[电] 声频放大器
🧩 词语组成解析
n. 音频\\n[计] 高级功能, 运算标志
🗣️ 情景例句
He was a dull man and you had to explain things very slowly to him.
他脑筋迟钝，你必须慢慢地给他解释事情。
You give me the money. I'll get you the goods.
一手交钱，一手交货。
if successful, to larger audiences.
如果讲得好，可能向更多人发表演说。