bottom millstone

英 [bottom millstone]
美 [bottom millstone]

中文释义

[机] 底石, 底梁, 底木

单词分析

单词结构：

bottom millstone

字母数：16

记忆提示

🎯 重点记忆：

  • 单词拼写：bottom millstone
  • 核心含义：[机] 底石, 底梁, 底木

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更新时间：2025-12-21 13:09:01