英语词汇protosubstance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	protosubstance
释义	protosubstance 网络释义 1 ?矿脂胶凝质矿脂胶凝质
随便看	needle nozzle needle number needle of instrument Needle-oil needleoil needle oil needle opening pressure needle-operated punched card needle operated punched card needle ore needle palm needle paper needle park needle passage needle pattern needle pellet needle penetration needle penetration test needle penetrometer needle pick-up needle pickup needle pick up needle (pin) needle piston needle piston guide

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。