N-SING [oft over N] (在集市或体育场馆内用于播报的)天朗扩音系统 A
Tannoy is a system of loudspeakers used to make public announcements, for example at a fair or at a sports stadium.
(在集市或体育场馆内用于播报的)天朗扩音系统 [British, trademark] in AM, use 美国英语用 public address system
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