noun 下载 🔗分享 血管瘤 A congenital, benign tumor of endothelial cells. Examples : "The baby was born with a small, red birthmark on her arm, which the doctor diagnosed as a hemangioma, a benign tumor made of blood vessels. " 这个婴儿出生时手臂上有一个小小的红色胎记,医生诊断为血管瘤,一种由血管组成的良性肿瘤。 medicine disease biology anatomy body organ biochemistry physiology 与AI对话词汇游戏阅读练习