b grade

英 [b grade]
美 [b grade]

中文释义

[经] 乙级

单词分析

单词结构：

b grade

字母数：7

记忆提示

🎯 重点记忆：

  • 单词拼写：b grade
  • 核心含义：[经] 乙级

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更新时间：2026-03-14 01:10:06