名词
中文翻译：严重的血便
同义词：
['serious bloody diarrhea', 'severe bloody stools']
例句：
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1. She was diagnosed with a serious case of diarrhea.
她被诊断出患有严重的腹泻。
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2. The patient's condition worsened significantly after the surgery.
手术后，患者的病情明显恶化。
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3.The doctor prescribed her with an antidiarrheal medication.
医生给她开了止泻药。