dial private branch exchange

英 [dial private branch exchange]
美 [dial private branch exchange]

中文释义

专用自动电话局;自动小交换机

单词分析

单词结构：

dial private branch exchange

字母数：28

记忆提示

🎯 重点记忆：

  • 单词拼写：dial private branch exchange
  • 核心含义：专用自动电话局;自动小交换机

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更新时间：2026-03-24 03:00:50