An urgent surgery showed a severe wound to the left pulmonary vein.
紧急手术显示左肺静脉严重受伤。
英语百科
Pulmonary vein
The pulmonary veins are large blood vessels that receive oxygenated blood from the lungs and drain into the left atrium of the heart. There are four pulmonary veins, two from each lung. The pulmonary veins are among the few veins that carry oxygenated blood.