research and developmet investment

英 [research and developmet investment]
美 [research and developmet investment]

中文释义

研究和开发投资

单词分析

单词结构：

research and developmet investment

字母数：34

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🎯 重点记忆：

  • 单词拼写：research and developmet investment
  • 核心含义：研究和开发投资

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更新时间：2026-02-05 03:55:21