名词中文翻译
中文翻译：Unknown
同义词：
['ulcer', 'sore', 'ulceration']
例句：
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1. He developed a severe ulcer on his stomach after eating spicy food.
他在吃了辛辣食物后，胃上长了一个严重的溃疡。
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2. The patient was diagnosed with ulcerative colitis.
患者被诊断出患有溃疡性结肠炎。
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3. Ulcers can be caused by stress or certain medications.
溃疡可能是由于压力或某些药物引起的。