primary grinding

英 [primary grinding]
美 [primary grinding]

中文释义

步研磨

单词分析

单词结构：

primary grinding

字母数：16

记忆提示

🎯 重点记忆：

  • 单词拼写：primary grinding
  • 核心含义：步研磨

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更新时间：2026-02-03 08:10:51