单词	pentylidene
释义	pentylidene noun pen·​tyli·​dene pen‧ˈtiləˌdēn plural -s : the bivalent radical CH3CH2CH2CH2CH< derived from normal pentane by removal of two hydrogen atoms from an end carbon called also amylidene Word History Etymology pentyl- + -idene
随便看	geomorphologies geomorphologist geomorphologists geomorphology geomorphy geomyid Geomyidae geomyidaes geomyoid Geomyoidea geomyses geonavigation geonegative geonic geonim geonoma geophagies geophagist geophagists geophagous geophagy Geophila geophili geophilidaes geophilomorph

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。