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certificate of security

英 [certificate of security]
美 [certificate of security]

中文释义

[经] 保证单

单词分析

单词结构:

certificate of security

字母数:23

记忆提示

🎯 重点记忆:

  • 单词拼写:certificate of security
  • 核心含义:[经] 保证单

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更新时间:2026-01-23 12:32:52

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