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exchange central office

英 [exchange central office]
美 [exchange central office]

中文释义

总局交换机

单词分析

单词结构:

exchange central office

字母数:23

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🎯 重点记忆:

  • 单词拼写:exchange central office
  • 核心含义:总局交换机

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更新时间:2025-12-20 16:11:20

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