as hard as the nether millstone

英 [as hard as the nether millstone]
美 [as hard as the nether millstone]

中文释义

adv. 铁石心肠

单词分析

单词结构：

as hard as the nether millstone

字母数：31

记忆提示

🎯 重点记忆：

  • 单词拼写：as hard as the nether millstone
  • 核心含义：adv. 铁石心肠

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更新时间：2026-04-11 14:16:44