a serious condition in which a person's joints (= places where two bones are connected ) become painful , swollen and stiff
发音
例句
1. Rheumatoid arthritis has also been linked with the virus. 风湿性关节炎也与这种病毒有关。 2. He spent three months in the hospital with acute rheumatic arthritis. 他患急性风湿性关节炎,在医院住了三个月。