英语词汇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	research and development
释义	research and development (产品、工艺等的)研究和开发，研发
随便看	let go let go let-go lethal lethal chamber lethal chambers lethal dose lethal factor lethal-factor lethal factors lethal gene lethal genes lethal injection lethalities lethality lethally lethally lethal mutation lethal-mutation lethal mutations lethalness lethalnesses lethals lethal yellowing lethargic

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。