Preamp
n. （无线电）前置放大器
🗣️ 情景例句
You should take the number 1 train to Van Cortlandt Park.
搭一路车到Van Cortlandt公园下车。
How much will you sell me this for?
把这个东西卖给我要多少钱？
Yes, thank you. We enjoyed ourselves very much.
挺好，谢谢你。我们玩得非常愉快。