railroad pen

英 [railroad pen]
美 [railroad pen]

中文释义

双线笔

单词分析

单词结构：

railroad pen

字母数：12

记忆提示

🎯 重点记忆：

  • 单词拼写：railroad pen
  • 核心含义：双线笔

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更新时间：2026-01-14 06:48:53