concrete track bed

英 [concrete track bed]
美 [concrete track bed]

中文释义

混凝土道床

单词分析

单词结构：

concrete track bed

字母数：18

记忆提示

🎯 重点记忆：

  • 单词拼写：concrete track bed
  • 核心含义：混凝土道床

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更新时间：2026-01-17 00:34:06