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Hemorrhoids consist of dilated submucosal veins which may thrombose and rupture with hematoma formation.
痔疮由扩张的黏膜下血管形成,此黏膜下血管可形成血栓和破损伴有血肿的形成.
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"the blood vessel thrombosed"
英汉双解词典包含4367426条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。