second longitudinal vein

例句：

1. 1. The surgeon carefully dissected the second longitudinal vein to remove the tumor.
   外科医生小心翼翼地解剖了次级纵向脉管以切除肿瘤。
2. 2.The pathologist examined the tissue under a microscope to locate the second longitudinal vein.
   病理学家在显微镜下检查组织，以定位次级纵向脉管。
3. 3.During the operation, the surgeon had to identify and ligate the second longitudinal vein to prevent bleeding.
   手术中，外科医生必须识别并结扎次级纵向脉管以防止出血。