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首页 > 英汉词典 > systematic investigation and study

systematic investigation and study

英 [systematic investigation and study]
美 [systematic investigation and study]

中文释义

系统调查研究

单词分析

单词结构:

systematic investigation and study

字母数:34

记忆提示

🎯 重点记忆:

  • 单词拼写:systematic investigation and study
  • 核心含义:系统调查研究

最近查询:

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更新时间:2026-01-31 21:17:12

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