名词
中文翻译：静脉
同义词：
['veins', 'arteries', 'capillaries']
例句：
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1.The veins in the skin are responsible for carrying blood away from the body.
皮肤中的静脉负责将血液从身体中带走。
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2.Blood vessels are essential for the transportation of oxygen and nutrients to the cells.
血管对于细胞的氧气和营养物质传输至关重要。
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3. The capillaries in the skin are tiny blood vessels that filter the blood before it reaches the heart.
皮肤中的毛细血管是微小的血管，它们在血液到达心脏之前过滤血液。