十二指肠的

例句：

1. 1.The doctor performed an endoscopy to examine the duodenal ulcer.
   医生进行了内窥镜检查，以检查十二指肠溃疡。
2. 2.He was diagnosed with a duodenal ulcer after his gastroenterologist examined him.
   他的胃肠病专家检查后诊断出他患有十二指肠溃疡。
3. 3.The patient was advised to follow a low-fat diet and avoid spicy foods to prevent further complications in the duodenal region.
   患者被建议遵循低脂饮食，并避免辛辣食物，以防止十二指肠区域进一步并发症。