柯林斯詞典woofer /?wu?f?/ 1. N a loudspeaker used in high-fidelity systems for the reproduction of low audio frequencies 低音敭聲器 返回 woofer劍橋詞典a loudspeaker designed to produce the low notes in a sound system 低音敭聲器，低音喇叭 比較tweeter subwoofer 返回 woofer