toll telephone switching system

英 [toll telephone switching system]
美 [toll telephone switching system]

中文释义

长途电话交换机

单词分析

单词结构：

toll telephone switching system

字母数：31

记忆提示

🎯 重点记忆：

  • 单词拼写：toll telephone switching system
  • 核心含义：长途电话交换机

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更新时间：2026-02-05 20:15:51