central office trunks

英 [central office trunks]
美 [central office trunks]

中文释义

交换局干线

单词分析

单词结构：

central office trunks

字母数：21

记忆提示

🎯 重点记忆：

  • 单词拼写：central office trunks
  • 核心含义：交换局干线

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更新时间：2026-01-30 03:01:54