肠内的

例句：

1. 1.The doctor advised him to eat a healthy diet to maintain his intestinal health.
   医生建议他吃健康的饮食来维护肠道健康。
2. 2.The patient was admitted to the hospital for further examination of his intestines.
   病人被收治入院，进一步检查他的肠道。
3. 3.The researcher found that a balanced diet can help prevent diseases related to the intestines.
   研究者发现，均衡饮食可以帮助预防与肠道相关的疾病。