ascending lumbar vein

例句：

1. 1. The patient was taken to the operating room for surgery.
   病人被送往手术室接受手术。
2. 2. The doctor performed an emergency operation on the patient.
   医生对病人进行了紧急手术。
3. 3. The surgeon removed the tumor from the patient's abdomen.
   外科医生从患者的腹部取出了肿瘤。