n.扩音器，喇叭，(收音机或乐器的)扬声器

原形：loudspeaker复数：loudspeakers

There is a loudspeaker
这里有一个扩音器
His voice over the loudspeaker was distorted.
他通过扬声器说话的声音失真了。
Our names were called over the loudspeaker .
喇叭里叫着我们的名字。
The teacher used a loudspeaker to make sure everyone in the classroom could hear.
老师使用扩音器确保教室里的每个人都能听到。
The announcement was made over the loudspeaker at the airport.
机场通过广播系统进行了公告。
The fire alarm blared from the loudspeakers, signaling an emergency evacuation.
火警警报声通过扬声器响起，指示紧急疏散。
The DJ played music through a powerful loudspeaker system to get the party started.
DJ通过强大的音响系统播放音乐，以启动派对。
The town crier announced the news using a portable loudspeaker.
市民宣告者使用便携式扩音器宣布了新闻。
The coach addressed the team with a loudspeaker during practice.
教练在训练期间通过扩音器向队伍讲话。
The concert organizers placed loudspeakers strategically around the venue for optimal sound distribution.
音乐会组织者在场地周围巧妙地放置了扬声器，以实现最佳声音分布。
The school's morning announcements were broadcasted through the loudspeaker system.
学校的早间通知是通过音响系统广播的。
The police car's loudspeaker warned the crowd to disperse.
警车的扬声器警告人群散开。
The loudspeaker on the rescue boat helped locate survivors in the water.
救援船上的扬声器帮助在水中找到幸存者。