名词
中文翻译：直肠上静脉
同义词：
['superior vena cava', "superior vena cava例句：1. The patient's condition required immediate attention due to the severity of the bleeding.（由于出血的严重性，患者的状况需要立即关注。）"]
例句：
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1. The patient's condition required immediate attention due to the severity of the bleeding.
由于出血的严重性，患者的状况需要立即关注。
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2. The doctor performed a surgical procedure to repair the damaged vein.
医生进行了手术来修复受损的静脉。
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3.The superior vena cava is an important pathway for blood flow from the heart to the rest of the body.
superior vena cava是心脏向身体其他部分输送血液的重要通道。