private branch exchange switchboard

英 [private branch exchange switchboard]
美 [private branch exchange switchboard]

中文释义

(专用)小交换机

单词分析

单词结构：

private branch exchange switchboard

字母数：35

记忆提示

🎯 重点记忆：

  • 单词拼写：private branch exchange switchboard
  • 核心含义：(专用)小交换机

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更新时间：2026-02-03 21:26:14