portocaval

例句：

1. 1. The surgeon removed the tumor from the patient's portocaval area.
   外科医生从患者的肠系膜区域取出了肿瘤。
2. 2. The patient was transferred to the intensive care unit after surgery.
   患者在手术之后被转移到重症监护室。
3. 3.The portocaval vein is a major blood vessel that carries nutrients and oxygen to the rest of the body.
   肠系膜静脉是一条主要的血管，输送养分和氧气到身体其他部分。