单词	royal fern
释义	royal fern noun variants or less commonly royal osmund : a common and widely distributed fern (Osmunda regalis) with large bipinnate fronds bearing the panicled globose sporangia at their summit called also ditch fern, French bracken, king fern Word History First Known Use 1781, in the meaning defined above
随便看	road/ground clearance roadabilities roadability roadable roadbed roadbeds roadblock roadblocked roadblocking roadblocks roadbook roadbooks roadbuilding roadcut roadder roaddest roaded roadeo roadeos roader roadest roadhead roadhogs roadholding roadholdings

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。