staircase vein

英 [staircase vein]
美 [staircase vein]

中文释义

阶级状矿脉

单词分析

单词结构：

staircase vein

字母数：14

记忆提示

🎯 重点记忆：

  • 单词拼写：staircase vein
  • 核心含义：阶级状矿脉

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更新时间：2026-01-09 05:14:29