单词	ra
释义	ra 1 of 4 abbreviation (1) range Ra 2 of 4 noun ˈrä  : the Egyptian sun god and chief deity Ra 3 of 4 symbol radium RA 4 of 4 abbreviation (2) 1 regular army 2 research assistant 3 residence assistant; resident assistant 4 rheumatoid arthritis 5 right ascension 6 Royal Academician; Royal Academy Word History Etymology Noun Egyptian rʽ First Known Use Noun 1877, in the meaning defined above Medical Definition Ra 1 of 2 symbol radium RA 2 of 2 abbreviation rheumatoid arthritis
随便看	oxalated oxalates oxalating oxalato- oxaldehyde oxalic acid Oxalidaceae oxalidaceaes oxalidaceous oxalis oxalises oxalo- oxaloacetate oxaloacetates oxaloacetic acid oxalonitrile oxalosuccinic acid oxaluric acid oxamate oxamic acid oxamide Oxamine dye oxammite oxandrae oxandras

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。