名词
中文翻译：血管的头
同义词：
['vein', 'artery例句：1. The veinsin the skin carry blood away from theheart.（皮肤中的静脉将血液从心脏带走。）']
例句：
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1. The veinsin the skin carry blood away from theheart.
皮肤中的静脉将血液从心脏带走。
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2. Blood vessels are essential for the deliveryof oxygen and nutrients to the body's cells.
血管对于输送氧气和营养物质到身体细胞至关重要。
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3. The veins inthe leg were swollen andpainful due to a bacterial infection.
腿部的静脉因细菌感染而肿胀且疼痛。