urogenital sinus sphincter

例句：

1. 1.The doctor advised him to take care of his health by eating a balanced diet and exercising regularly.
   医生建议他通过均衡饮食和定期锻炼来照顾好自己的健康。
2. 2. The patient's condition improved significantly after the surgery.
   手术后，患者的病情显著改善。
3. 3. The researcher found that the urogenital sinus sphincter plays an important role in controlling urine flow.
   研究者发现尿道括约肌在控制尿液流动方面起着重要的作用。