英语词汇R and D, R & D怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	R and D, R & D
释义	R and D, R & D abbr. research and development 研究与开发，研发
随便看	principal focus principal focuses principal girl principal in the first degree principal in the second degree principalities principality principally principal meridian principalness principalness principal parts principal partses principal plane principal planes principal point principal points principal quantum number principal quantum numbers principals principal sentence principal series principal series's principalship principalship

英汉双解词典包含548777条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。