名词
中文翻译：Unknown
同义词：
['hourglass tumor', 'hourglass tumor', 'hourglass tumor']
例句：
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1. The hourglass tumor is a rare and aggressive cancer that can spread quickly throughout the body.
小时玻璃瘤是一种罕见的、恶性的癌症，可以迅速扩散到全身。
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2.The patient was diagnosed with an hourglass tumor, which required immediate surgery to remove it.
患者被诊断出患有小时玻璃瘤，需要立即进行手术来切除它。
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3.The hourglass tumor is characterized by its slow-growing nature and tendency to recur after treatment.
小时玻璃瘤以其缓慢生长的特性和治疗后复发倾向而闻名。