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Class B certification

英 [Class B certification]
美 [Class B certification]

中文释义

[计] B类认证

单词分析

单词结构:

Class B certification

字母数:21

记忆提示

🎯 重点记忆:

  • 单词拼写:Class B certification
  • 核心含义:[计] B类认证

最近查询:

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更新时间:2026-01-24 13:51:37

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