名词
中文翻译：静脉
同义词：
['vein', 'artery例句：1. The veins in the palm of your hand are responsible for carrying blood back to the heart.（手掌中的静脉负责将血液输送回心脏。）']
例句：
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1. The veins in the palm of your hand are responsible for carrying blood back to the heart.
手掌中的静脉负责将血液输送回心脏。
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2. Blood vessels are essential for delivering oxygen and nutrients to the body's cells.
血管对于向身体细胞输送氧气和营养物质至关重要。
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3. When a person is injured, the veins near the site of the injury can become swollen and painful.
当一个人受伤时，受伤部位的附近静脉可能会变得肿胀并疼痛。