primary investigation

英 [primary investigation]
美 [primary investigation]

中文释义

原始调查

单词分析

单词结构：

primary investigation

字母数：21

记忆提示

🎯 重点记忆：

  • 单词拼写：primary investigation
  • 核心含义：原始调查

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更新时间：2026-03-19 21:52:42