英语词汇protoplanetary nebula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	protoplanetary nebula
释义	protoplanetary nebula 简明释义原行星云
随便看	psygnosis psyker psykers psykter psyla psylid psylla psyllaic acid psylla of apple tree psylla Psylliate psyllic psyllic acid psyllic alcohol psyllid Psyllidae Psyllidae psyllids psyllium psyllium granules psyllium gum psyllium husk psyllium hydrocolloid psyllium hydrophilic mucilloid Psyllium Hydrophilic Mucilloid Powder

英汉双解词典包含3185865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。