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单词 speaking tube
释义

WordReference Random House Unabridged Dictionary of American English © 2024
speaking tube′, 
  1. a tube for conveying the voice over a somewhat limited distance, as from one part of a building or ship to another.
  • 1825–35

Collins Concise English Dictionary © HarperCollins Publishers::
speaking tube n
  1. a tube or pipe for conveying a person's voice from one room, area, or building to another
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更新时间:2025/2/23 7:43:38