A loudhailer blared warnings of a bomb scare.
扩音器大声播报炸弹恐吓的警告。
It is like an advanced form of loudhailer which specifically directs the sound rather than bathing everyone "says Neil davison of the non-lethal weapons project at the university of Bradford."
“这就像进化的扬声器，扬声器引导声音的方向而非泛传给所有对象。”莱佛德非致命武器计划的尼尔·大卫森说。
It is like an advanced form of loudhailer which specifically directs the sound rather than bathing everyone "says Neil davison of the non-lethal weapons project at the university of Bradford."
“这就像进化的扬声器，扬声器引导声音的方向而非泛传给所有对象。”莱佛德非致命武器计划的尼尔·大卫森说。
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