vena caval foramen

例句：

1. 1.The doctor performed a surgery to repair the damaged vein.
   医生进行了手术来修复受损的静脉。
2. 2.The patient was admitted to the hospital with a severe vein infection.
   患者因严重的静脉感染被送进了医院。
3. 3. The surgeon carefully removed the vein foramen during the operation.
   外科医生在手术中小心地移除了静脉管口。