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difficult problem

英 [difficult problem]
美 [difficult problem]

中文释义

难题

单词分析

单词结构:

difficult problem

字母数:17

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🎯 重点记忆:

  • 单词拼写:difficult problem
  • 核心含义: 难题

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更新时间:2025-12-08 17:09:09

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