semi-automatic telephone switchboard

英 [semi-automatic telephone switchboard]
美 [semi-automatic telephone switchboard]

中文释义

半自动电话交换机

单词分析

单词结构：

semi-automatic telephone switchboard

字母数：36

记忆提示

🎯 重点记忆：

  • 单词拼写：semi-automatic telephone switchboard
  • 核心含义：半自动电话交换机

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更新时间：2026-03-21 13:28:45