Adhesive for Loudhailer扬声器用胶
control of loudhailer管制扩音器
loudhailer reproducer squawk box扬声器
Loudhailer & Waistband Amplifier大声公
loudhailer speaking trumpet喇叭筒
N-COUNT（可数名词） A loudhailer is a device for making your voice sound louder in the open air. 扩音器 [英国英语]
A loudhailer blared warnings of a bomb scare.
扩音器大声播报炸弹恐吓的警告。