Preamp
n. （無線電）前置放大器
??? 情景例句
Richard and Marilyn bought it for me for my birthday.
這是Richard和Marilyn送給我的生日禮物。
He's a composer of popular songs.I like his music a lot.
他是流行歌曲作曲家，我很喜歡他的音樂。
when H.M.S. Porcupine was put at the disposal of the Royal Society for several cruises,
皇家學會用英國"豪豬號艦艇進行了幾次巡航后，