chronic illness

例句：

1. 1. She has been suffering from chronic illness for years.
   她多年来一直患有慢性病。
2. 2.The doctor diagnosed her with a chronic illness and prescribed medication.
   医生诊断出她的慢性疾病并开了药。
3. 3. Chronic illness can be debilitating and require ongoing medical care.
   慢性疾病可能会令人衰弱，需要持续的医疗照顾。