单词	pentacyclic
释义	pentacyclic adjective pen·​ta·​cyclic ¦pentə+ : containing five usually fused rings in the molecular structure Word History Etymology penta- + cyclic
随便看	bitinglier bitingliest bitingly bitingness bitings Bitis bitises bitisses bitmap bitmapped bitmaps bitnets bito bito tree bitoks Bitola bitolj bitonal bitonality bitos bitrate bits bits and bobs bits and pieces bitstock

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。