单词	ammonium persulfate
释义	ammonium persulfate noun : a colorless crystalline salt (NH4)2S2O8 used as an oxidizing agent and for improving dense photographic negatives Word History First Known Use 1891, in the meaning defined above
随便看	puddlier puddliest puddling puddling furnace puddlings puddly puddock puddocks puddy pudencies pudency pudenda pudendal pudendum pudge pudges pudgier pudgiest pudgily pudginess pudginesses pudgy pudibund pudibundity pudicity

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。