gravel ballasting

英 [gravel ballasting]
美 [gravel ballasting]

中文释义

砾石道碴

单词分析

单词结构：

gravel ballasting

字母数：17

记忆提示

🎯 重点记忆：

  • 单词拼写：gravel ballasting
  • 核心含义：砾石道碴

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更新时间：2026-02-07 14:20:17