sealed boundary

英 [sealed boundary]
美 [sealed boundary]

中文释义

封闭边界

单词分析

单词结构：

sealed boundary

字母数：15

记忆提示

🎯 重点记忆：

  • 单词拼写：sealed boundary
  • 核心含义：封闭边界

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更新时间：2026-01-29 20:34:35