英语词汇“research and development”的读音、翻译、释义、用法及例句-范文大全网

词汇	research and development
释义	research and developmentˌresearch and deˈvelopment / / noun [uncountable] (abbreviation R & D) (~~business商业~~) (in industry, etc.) work that tries to find new products and processes or to improve existing ones研究与开发；研发
随便看	steadily steadily steadily steads steady steadying steak steakhouse steakhouses steaks steal steal away, in, out, etc. stealing steals steal (sth) (from sb / sth) stealth stealthily stealthily stealthy stealthy steam steamboat steamboats steamed steamer 家长保证书寒假家长保证书寒假家长保证书范文家长的保证书范文集合家长的保证书模板家长保证书大全关于家长的保证书合集家长的保证书模板汇编家长的保证书范文关于家长的保证书汇总关于家长的保证书关于家长的保证书集锦有关家长的保证书家长的保证书集合家长监督保证书家长接送保证书范文 2023家长保证书家长保证书范文家长接送保证书家长接送保证书范文 2023家长保证书家长保证书 2023家长保证书家长保证书范文家长保证书

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