toll switching stage

英 [toll switching stage]
美 [toll switching stage]

中文释义

途电话转接站，长途电话交换台

单词分析

单词结构：

toll switching stage

字母数：20

记忆提示

🎯 重点记忆：

  • 单词拼写：toll switching stage
  • 核心含义：途电话转接站，长途电话交换台

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更新时间：2025-12-21 19:44:11