research and develop
查询英语单词中文释义、音标、发音和例句。
research and development expense
英
[research and development expense]
美
[research and development expense]
中文释义
研究与开发费
单词分析
单词结构：
research and development expense
字母数：32
记忆提示
🎯 重点记忆：
- 单词拼写：research and development expense
- 核心含义：研究与开发费
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更新时间：2026-09-20 22:25:07