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principal veins and arteries /pɒstˈiəɹiə ˈvjuː/ n
English · principal veins and arteries中文 · 主要动静脉
Bedeutung：Arteries distribute oxygenated blood throughout the body, while veins carry deoxygenated blood to the heart. Pulmonary arteries and veins function differently.
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Major veins and arteries

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