Vena cava inferior

例句：

1. 1.The surgeon carefully removed the tumor from the vein cava inferior.
   外科医生小心翼翼地从下腔静脉中取出了肿瘤。
2. 2.The patient was given medication to treat the condition of the vein cava inferior.
   患者被给予药物来治疗下腔静脉的状况。
3. 3.The doctor performed an ultrasound scan on the vein cava inferior to check for any blockages.
   医生对下腔静脉进行了超声波扫描，以检查是否有阻塞。