英语词汇defence research and development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	defence research and development
释义	research and development — 研发
随便看	i would please ask i would pleased i would pleased to meet you I would point out I would point out I would point out that I would poison i would poison i would politely ask i would postpone i would prefer i would preferred i would prefer that I would prefer to have i would prefer to join i would prefer to keep i would prefer to leave I would prefer to leave i would prefer to live i would prefer to pay i would prefer to see i would prefer to speak I would prefer to talk about I would prefer to talk about i would prefer to use

英汉双解词典包含2273206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。

research and development —