recurrent ulcer

例句：

1. 1. He has had several recurrent ulcers in his stomach.
   他胃里曾经出现过几次复发性溃疡。
2. 2. This condition is characterized by recurrent ulcers and bleeding.
   这种状况的特点是反复发作的溃疡和出血。
3. 3.The patient's diet was modified to prevent recurrent ulcers.
   为了预防复发性溃疡，患者的饮食进行了调整。