gravel ballast

英 [gravel ballast]
美 [gravel ballast]

中文释义

卵石道碴

单词分析

单词结构：

gravel ballast

字母数：14

记忆提示

🎯 重点记忆：

  • 单词拼写：gravel ballast
  • 核心含义：卵石道碴

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更新时间：2026-04-11 23:31:15