national primary standard

英 [national primary standard]
美 [national primary standard]

中文释义

家一级标准

单词分析

单词结构：

national primary standard

字母数：25

记忆提示

🎯 重点记忆：

  • 单词拼写：national primary standard
  • 核心含义：家一级标准

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更新时间：2026-02-03 05:39:14