loudspeaker
🇺🇸
/ˌlaʊdˈspiːkər/
🇬🇧
/ˌlaʊdˈspiːkə(r)/
A device that amplifies sound from an audio source, like music or announcements, in public spaces.
The teacher used a loudspeaker to make sure everyone in the playground could hear the instructions.
老師使用擴音器以確保操場上的每個人都能聽到指令。
A phone setting that allows you to hear the audio without holding the phone to your ear.
She put her phone on loudspeaker so we could all hear the conversation.
她把手機調到免提模式,這樣我們都能聽到對話。
The part of a radio or audio system that produces sound.
He turned up the volume on the loudspeaker to hear the song better.
他調高了揚聲器的音量,以便更好地聽到歌曲。