英语词汇busy back tone怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	busy back tone
释义	busy back tone 简明释义忙音网络释义 1 ?忙音 ... busy-back signal 占线信号，忙音信号 busy-back tone 忙音，蜂音，占线音 busy-buzz 忙蜂音，占线音 ... 2 ?蜂音忙音，蜂音，占线音短语 1 busy back tone 忙音 ; 蜂音
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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。