基本解释n.瘀点；瘀斑名词petechia的复数形式.同根派生 英汉例句用作名词 (n.)The vaginal mucosa is thin with diffuse erythema, occasional petechiae or ecchymoses, and few or no vaginal folds.阴道黏膜菲薄，充血，偶有瘀斑，皱襞减少或消失。