名词
中文翻译：静脉
同义词：
['vein', 'artery', 'capillary', 'blood vessel']
例句：
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1. The vein in her arm is throbbing with pain.
她手臂上的静脉在疼痛。
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2. Blood vessels are essential for the exchange of oxygen and nutrients to cells.
血管对于细胞交换氧气和营养物质至关重要。
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3. The doctor removed the clot from her leg, which was caused by a deep vein thrombosis.
医生从她的腿上移除了血栓，这是由深静脉血栓引起的。