mesenteric fat

例句：

1. 1. The patient's condition worsened after the surgery.
   手术后，患者的病情恶化了。
2. 2.The mesentery is a thin layer of connective tissue that surrounds the intestines.
   肠系膜是环绕肠道的一层薄的结缔组织。
3. 3.The mesentery plays an important role in maintaining the health of the digestive system.
   肠系膜在维护消化系统健康方面起着重要的作用。