dot-and-dash signal

英 [dot-and-dash signal]
美 [dot-and-dash signal]

中文释义

点划信号

单词分析

单词结构：

dot-and-dash signal

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：dot-and-dash signal
  • 核心含义：点划信号

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更新时间：2026-04-01 11:41:46