Arcus ductus thoracici

例句：

1. 1. The surgeon performed a successful operation on the patient's abdomen.
   外科医生成功地为患者的腹部进行了手术。
2. 2. The doctor advised the patient to avoid strenuous activities for a few days.
   医生建议患者在接下来的几天里避免剧烈运动。
3. 3. The anatomist dissected the human body in preparation for his lecture.
   解剖学家为了他的讲座，解剖了人体。