research and development investment

英 [research and development investment]
美 [research and development investment]

中文释义

[经] 研究和发展(开发)投资

单词分析

单词结构：

research and development investment

字母数：35

记忆提示

🎯 重点记忆：

  • 单词拼写：research and development investment
  • 核心含义：[经] 研究和发展(开发)投资

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更新时间：2026-02-20 18:08:33