loudspeaker noun

LOUDSPEAKER + VERB broadcast sth Loudspeakers broadcast the football results.

LOUDSPEAKER + NOUN announcement | system

PREP. from a/the ~ Christmas songs blared from loudspeakers. | over a/the ~ We heard the news over the loudspeaker. | through a/the ~ A woman was addressing the crowd through a loudspeaker.

You can also check Google Dictionary: loudspeaker (English, 中文解释 )

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