B switchboard

英 [B switchboard]
美 [B switchboard]

中文释义

乙交换台,乙台(电话交换台)

单词分析

单词结构：

B switchboard

字母数：13

记忆提示

🎯 重点记忆：

  • 单词拼写：B switchboard
  • 核心含义：乙交换台,乙台(电话交换台)

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更新时间：2026-03-22 15:40:18