C2 noun #72,075 最常用

A tube for conveying speech, especially from one room to another at a distance.

speaking tube 30秒了解

  • (noun) A tube for conveying speech, especially from one room to another at a distance.

Meanings

  1. 1
    noun A tube for conveying speech, especially from one room to another at a distance.

近义词

voicepipe
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