名词
中文翻译：输尿管结石
同义词：
['kidney stone', 'calculus']
例句：
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1.He was diagnosed with a kidney stone and had to undergo surgery.
他被诊断出患有肾结石，并不得不接受手术。
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2.The pain from the kidney stone made it difficult for him to walk.
肾结石引起的疼痛让他难以行走。
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3. Kidney stones can be caused by high levels of uric acid in the blood.
肾结石可能是由于血液中尿酸水平过高引起的。