nonvalidation stamp

英 [nonvalidation stamp]
美 [nonvalidation stamp]

中文释义

无效戳记

单词分析

单词结构：

nonvalidation stamp

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：nonvalidation stamp
  • 核心含义：无效戳记

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更新时间：2026-02-02 12:42:14