单词	Ring Nebula
释义	Ring Nebula (ring) n. A planetary nebula in the constellation Lyra. Ring Nebula NGC 6720
随便看	rotund rotunda rotundity rotundly rotundness roturier Rouault rouble rouble Rouen Rouen rouge Rouget cell Rouget de Lisle rough roughage rough-and-ready rough-and-tumble rough breathing roughcast roughcaster rough collie rough cut roughdry roughen

英语词典包含135693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。