| 单词 | 研究与开发 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔MANAGER〕She's the head of research and development. 她是研究与开发部的主管。朗文写作活用〔R ＆ D〕Research and development.研究与开发美国传统If we want to get ahead of our competitors, we ought to invest more in R and D.若想领先于我们的竞争对手，我们应该更多地投资研究与开发。剑桥国际Most of our income is channelled into research and development.我们的大部分收入都用于研究与开发。牛津商务The research and development (abbreviation R and D) department investigated ways of improving engine performance.研究与开发部门研究了提高引擎性能的方法。剑桥国际 |
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