名词
中文翻译：肠上段
同义词：
['upper ileum', "superior ileum例句：1. The patient's condition is critical and requires immediate surgery.（病人的状况危急，需要立即手术。）"]
例句：
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1. The patient's condition is critical and requires immediate surgery.
病人的状况危急，需要立即手术。
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2. The doctor performed a thorough examination of the patient's upper ileum.
医生对病人的上段肠进行了彻底的检查。
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3.The researcher found that the upper ileum was affected by the medication.
研究者发现药物影响了上段肠。