Postamplifier
后置放大器
🗣️ 情景例句
You can catch the ten-twenty train to Grand Central Station.
你能赶上开往Grand Central Station的十点二十分班车。
Do you happen to know Mr. Cooper's telephone number?
你知道库珀先生的电话号码吗？
3 'I said it was a good idea all along.'
三、 我一直说这是个好想法。"