primary standard grade

英 [primary standard grade]
美 [primary standard grade]

中文释义

原标准级

单词分析

单词结构：

primary standard grade

字母数：22

记忆提示

🎯 重点记忆：

  • 单词拼写：primary standard grade
  • 核心含义：原标准级

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更新时间：2026-04-10 00:09:18