loudspeaker
柯林斯词典
1. N-COUNT A loudspeaker is a piece of electronic equipment that forms part of a public address system and transmits sound. 敭聲器
The loudspeaker announced the arrival of the train. 廣播說火車進站了。
2. N-COUNT A loudspeaker is a piece of equipment, for example, part of a radio or hi-fi system, through which sound comes out. 喇叭[英國英語]
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