史蒂文：是治我的胃的。医生说我有胃溃疡。
Steven: It's for my stomach. My doctor says I'm getting an ulcer.
医生们告诉我，他大便里没有寄生虫，也不像有胃溃疡或阑尾炎。
The doctors told me that he did not have any worms and that there was no evidence of a peptic ulcer or appendicitis.
有70%以上的十二指肠溃疡和胃溃疡是由幽门螺杆菌引起的。
More than 70 percent of duodenal and stomach ulcers are caused by a bacterium called helicobacter pylori.
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