private automatic exchange unit

英 [private automatic exchange unit]
美 [private automatic exchange unit]

中文释义

专用自动电话总机

单词分析

单词结构：

private automatic exchange unit

字母数：31

记忆提示

🎯 重点记忆：

  • 单词拼写：private automatic exchange unit
  • 核心含义：专用自动电话总机

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更新时间：2026-03-16 10:13:23