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research and development investment
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:2026-02-07 14:35:44