剑桥词典abbreviation for research and development : the part of a business that tries to find ways to improve existing products , and to develop new ones 研究與開發（research and development的縮寫） If we want to get ahead of our competitors , we ought to invest more in R and D. 如果我們想領先於競爭對手，就應該在研發上增加投入。 返回 R and D