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loudspeaker
n. [
͵laʊd'spiːkə
] ( loudspeakers )
双解释义
C
扩音器，扬声器，喇叭 part of a radio receiving apparatus that changes electric waves into sound-waves loud enough to be heard without ear-phones
句型例句
The loudspeaker announced each airplane as it landed at the airport.每架飞机在机场一着陆,扩音器就发出通告。
