基本解释[医药科学]出血性外痔英汉例句双语例句Although no one said bleeding external hemorrhoids, but it does not mean that would not bleed.外痔虽有不出血一说，但不代表不会不出血。词组短语短语bleeding external hemorrhoids detail 出血性外痔专业释义医药科学出血性外痔