名词
中文翻译：背景扬声器
同义词：
['background speaker', 'background sound system例句：1. The conference room has a large background loudspeaker for better audio quality.（会议室有一个大型的背景扬声器，以获得更好的音频质量。）']
例句：
-
1. The conference room has a large background loudspeaker for better audio quality.
会议室有一个大型的背景扬声器，以获得更好的音频质量。
-
2. The concert venue is equipped with a high-quality background loudspeaker system.
音乐会场地配备了高质量的背景扬声器系统。
-
3. The background noise from the crowd drowned out the speaker's voice.
人群的噪音淹没了演讲者的嗓音。