arthrostracous

例句：

1. 1. She has been suffering from arthritis for years.
   她多年来一直患有关节炎。
2. 2. The doctor prescribed her a new medication to treat her arthritis.
   医生给她开了一种新的药物来治疗她的关节炎。
3. 3. Arthritis can cause severe pain and limit mobility in the joints.
   关节炎可以导致严重的疼痛并限制关节的活动能力。