?传话筒
... 传话筒 speaking-tubes 热离子真空管(收音机) thermionic valves 自动电唱机(音乐) juke boxes ...
传话筒
There are old speaking tubes from pre-electricity days and sleeping porches, which were once used in warmer months before air conditioning was the norm.
WSJ: A Greenwich House Aims to Sell for $190 Million
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。