private branch exchange switchboard

[private branch exchange switchboard]
[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