arthrectasis

例句：

1. 1. He had a severe case ofarthritis, which made it difficultfor him to move around.
   他患有严重的关节炎，这使得他难以活动。
2. 2. The patientwas diagnosed with arthritis and requiredtreatment.
   患者被诊断出患有关节炎，需要治疗。
3. 3. Arthritis is a commoncondition that affects the joints and cancause pain and stiffness.
   关节炎是一种常见的疾病，影响关节并可能导致疼痛和僵硬。