loudspeaker 的英语意思
loudspeakerloudspeaker /ˌlaʊdˈspiːkə, ˈlaʊdˌspiːkə $ -ər/ noun [countable] 
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a piece of equipment used to make sounds louder用于放大声音的设备from/over/through a loudspeaker
The voice over the loudspeaker (=using the loudspeaker) said the flight was delayed.扬声器里传来的声音说航班延误了。2a speaker(3)扬声器（见speaker第3义）
查看全部语言翻译1a piece of equipment used to make sounds louder用于放大声音的设备from/over/through a loudspeaker The voice over the loudspeaker (=using the loudspeaker) said the flight was delayed.扬声器里传来的声音说航班延误了。2a speaker(3)扬声器（见speaker第3义）