large vein的用法和樣例：
例句
- Their predominant loci are the inferior vena cava and large veins of thighs.
最好發的部位是下腔靜脈與大腿的大靜脈。 - A closer view of a thromboembolus filling a main pulmonary artery reveals a layered appearance, typical of a thrombus that formed in a large vein of the pelvis or lower extremity.
肺動脈主幹內的血栓栓子近距離外觀顯示分層結構，這是骨盆或下肢大靜脈血栓的特徵表現。
