以下为句子列表：
英文: An 80-year-old man with Parkinson's disease developed intractable hiccups when his existing levodopa/carbidopa dosage was increased to treat bradykinesia.
中文: 1例患帕金森氏病的80岁男性使用左旋多巴/卡比多巴治疗运动迟缓，在增加剂量时出现顽固性呃逆。
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英文: As the determination of such optimal multicast routes was computationally intractable in polynomial time, a multicast routing algorithm based on genetic algorithm was proposed to simultaneously optimize different parameter, in which multiple multicast tre
中文: 由于多播路由的最优选择问题在多项式时间内难以求解，提出一种使用遗传算法的路由算法来同时优化不同的服务质量指标，计算产生出几种路由树。
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英文: Because of the high motality rate, emphysematous pyelonephritis should be kept in mind in diabetic patients with intractable pyelonephritis.
中文: 因为产气性肾盂肾炎具有高死亡率，特此提出病例报告。
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英文: Conclusion According to the principle of evidence-based medicine, we used nerve growth factor treat that patient and got a satisfied effect, it is very significant to improve the life quality of intractable facial paralysis patients.
中文: 结论依据循证医学的原则，对该患者采用神经生长因子治疗，获得了满意效果，对提高难治性面神经炎患者的生活质量具有重要意义。
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英文: Difficult to work with, such as soil; intractable.
中文: 难对付的难处理的（如因污物）；难驾驭的
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