3-a sanitary standard

英 [3-a sanitary standard]
美 [3-a sanitary standard]

中文释义

3-A卫生标准

单词分析

单词结构：

3-a sanitary standard

字母数：21

记忆提示

🎯 重点记忆：

  • 单词拼写：3-a sanitary standard
  • 核心含义：3-A卫生标准

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更新时间：2026-02-05 02:53:16