名词
中文翻译：邮政静脉
同义词：
['postal artery', 'postal veins']
例句：
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1.The postal vein is the main artery that carries blood from the heart to the lungs.
邮政静脉是主要动脉，将血液从心脏输送到肺部。
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2.During the winter months, the postal vein becomes less active due to reduced blood flow.
在冬季，由于血流减少，邮政静脉变得不那么活跃。
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3. The postal vein is responsible for carrying nutrients and oxygen to the body's cells.
邮政静脉负责将营养物质和氧气输送到身体细胞。