veiny

例句：

1. 1.The doctor examined the patient's venous system.
   医生检查了患者的静脉系统。
2. 2.The venous blood flowed slowly into the heart.
   静脉血缓慢地流入心脏。
3. 3.Veiny veins are visible under a microscope.
   在显微镜下可以看到静脉血管。