thoracodorsal vein

例句：

1. 1. The surgeon carefully dissected the thoracodorsal vein to avoid damaging the lung tissue.
   外科医生小心翼翼地解剖了胸背静脉，以避免损伤肺部组织。
2. 2. During surgery, it is important to identify and protect the thoracodorsal vein to prevent complications.
   在手术过程中，识别并保护胸背静脉以防止并发症的发生。
3. 3. The patient's condition worsened after the thoracodorsal vein was damaged, requiring immediate medical attention.
   患者的病情在胸背静脉受损后恶化，需要立即医疗关注。