tarry stools造句

• Bleeding oesophagus and intestines , like vomiting blood , and bloody or tarry stool
  食道及肠脏出血，引致吐血，大便有血或变成黑色
• When there is bleeding from the peptic ulcer , the patient may have coffee - ground vomitus andor black tarry stool
  当消化性溃疡引致出血时，患者会出现咖啡状的呕吐物及或黑色大便。