单词	acetonyl
释义	acetonyl noun ac·​e·​ton·​yl ˈa-sə-(ˌ)tō-ˌnil, ə-ˈse-tə- plural -s : the univalent radical CH3COCH2 formed by removal of a hydrogen atom from acetone Word History Etymology International Scientific Vocabulary acetone + -yl First Known Use 1853, in the meaning defined above
随便看	roll bar roll book roll cage roll call roll calls roll ceiling roll down roll film roll in roll joint roll of honour roll off the tongue roll one's r's roll out roll out of bed roll out the red carpet roll out the welcome mat roll pass roll roofing roll scale roll sulfur roll the bones roll the dice roll top roll train

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。