down-the-hole drill

英 [down-the-hole drill]
美 [down-the-hole drill]

中文释义

潜孔钻机

单词分析

单词结构：

down-the-hole drill

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：down-the-hole drill
  • 核心含义：潜孔钻机

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更新时间：2026-01-09 05:15:08