secondary source

英 [secondary source]
美 [secondary source]

中文释义

[计] 二次文献

单词分析

单词结构：

secondary source

字母数：16

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🎯 重点记忆：

  • 单词拼写：secondary source
  • 核心含义：[计] 二次文献

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更新时间：2025-12-08 12:38:42