名词
中文翻译：静脉
同义词：
['vein', 'artery', 'capillary例句：1. The doctor examined her veins for signs of infection.（医生检查了她的静脉，寻找感染的迹象。）']
例句：
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1. The doctor examined her veins for signs of infection.
医生检查了她的静脉，寻找感染的迹象。
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2.Blood flows through the veins to the heart.
血液通过静脉流向心脏。
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3. A vein is a thin tube that carries blood away from the heart.
静脉是一条薄管，将血液从心脏输送出去。