difficulty index

英 [difficulty index]
美 [difficulty index]

中文释义

难度指数

单词分析

单词结构：

difficulty index

字母数：16

记忆提示

🎯 重点记忆：

  • 单词拼写：difficulty index
  • 核心含义：难度指数

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更新时间：2026-03-17 14:48:03