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1. The hypoglossal canal is a small passageway in the floor of the mouth that connects the tongue to the throat.
舌下管是口腔底部的一个通道，连接舌头和咽喉。
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2. During surgery, the surgeon needs to identify and protect the hypoglossal canal to avoid damaging the nerves.
在手术中，外科医生需要识别并保护舌下管，以避免损伤神经。
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3. The patient was diagnosed with a condition that affected the hypoglossal canal, leading to difficulty swallowing.
患者被诊断出患有影响舌下管的疾病，导致吞咽困难。