单词	twenty-firster
释义	twenty-firster noun twenty-first·​er plural -s : the celebration of a 21st birthday Word History Etymology twenty-first + -er
随便看	subcauses subceiling subceilings subcelestial subcellar subcellars subcells subcellular subcenter subcenters subcentral subcentrally subcentre subcerebral plane subchairman subchanter subchanters subchapter subchapters subchaser subchasers subchela subchelae subchelate subchief

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。