cystis degeneratiaon

例句：

1. 1. The patient's condition worsened significantly after the surgery.
   手术后，患者的病情显著恶化。
2. 2. The diseaseis characterized by a progressive loss of functionin various organs.
   这种疾病的特点是在各个器官中逐渐丧失功能。
3. 3. Theresearcher found that thebacteria responsible for the disease hadmutated over time.
   研究者发现，导致该疾病的细菌随着时间的推移已经发生了变异。