单词	bit extension
释义	bit extension noun : a metal rod with a tang at one end and a socket at the other and used for increasing the effective length of an auger bit Word History Etymology bit entry 1
随便看	progestational progesterone progesterones progestin progestins progestogen progestogenic progestogens progged proggers progging proglacial proglottic proglottid proglottides proglottids proglottis prognathic prognathism prognathisms prognathous Progne prognes prognosed prognoses

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。