venae

例句：

1. 1. The doctor examined the patient's venae and found no signs of infection.
   医生检查了病人的静脉，没有发现感染的迹象。
2. 2. Blood vessels are essential for carrying oxygen and nutrients to the body's cells.
   血管对于将氧气和营养物质输送到身体细胞中至关重要。
3. 3.The veins in the arm were swollen and painful due to a long-term injury.
   手臂中的静脉因为长期受伤而肿胀且疼痛。