名词
中文翻译：结石
同义词：
['calculus', 'calculus', 'lithiasis']
例句：
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1.He had a kidney stone that required surgery.
他患有肾结石，需要手术治疗。
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2. The doctor advised him to stay hydrated to prevent further complications.
医生建议他保持水分充足，以防止进一步并发症。
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3. She was diagnosed with a calcium oxalate calculus in her gallbladder.
她被诊断出胆囊中有钙草酸钙结晶。