1·The veins carry blood to the heart.
静脉把血液输送到心脏。
—— 《牛津词典》
2·Many veins are found just under the skin.
许多静脉就在皮肤下面。
—— 《柯林斯英汉双解大词典》
3·It works only in the veins, where the blood flow is slower.
它只在血液流动较缓的静脉中起作用。
—— 《柯林斯英汉双解大词典》
4·Varicose veins are really just swollen veins and are caused by increased blood volume and pressure on the legs and feet.
静脉曲张其实就是肿胀的静脉，这是由腿部和脚部的血量增加和压力引起的。
5·Fossa ovalis and the tributaries of great saphenous veins were observed and measured on 52 lower limbs of the patient.
在患者的52个下肢上观察并测量了卵圆窝和大隐静脉的支流。