automatic switching of telegraph and telephone

[automatic switching of telegraph and telephone]
[automatic switching of telegraph and telephone]

中文释义

电报电话自动交换

单词分析

单词结构:

automatic switching of telegraph and telephone

字母数:46

记忆提示

🎯 重点记忆:

  • 单词拼写:automatic switching of telegraph and telephone
  • 核心含义: 电报电话自动交换