单词 | 扩音系统 |
例句 | DEFINITIVE EXAMPLES 权威例句〔PA system〕A public-address system.有线广播系统;扩音系统美国传统A message came through for me on/over the PA system.通过扩音系统传给我一条口信。剑桥国际We couldn't hear the announcement that was made on the tannoy system.我们听不见扩音系统所作的通告。剑桥国际 |
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