静脉曲张的

例句：

1. 1. The doctor examined the patient's venous system to determine the cause of his pain.
   医生检查了患者的静脉系统以确定他疼痛的原因。
2. 2.Blood flows through the venous system to deliver oxygen and nutrients to the body.
   血液通过静脉系统输送氧气和营养物质到身体。
3. 3. The patient was given medication to treat his venous disease.
   患者被给予药物来治疗他的静脉疾病。