关节炎 guānjiéyán arthritis Definitions Defs Origin Strokes Stroke Words Sentences Sents 风湿关节炎 fēngshīguānjiéyán rheumatoid arthritis 风湿性关节炎 fēngshīxìngguānjiéyán rheumatoid arthritis 骨关节炎 gǔguānjiéyán osteoarthritis