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1. Thedoctor performed a biopsy on thepatient's nasal cavity todiagnose the condition.
医生对患者的鼻腔进行了活组织检查以诊断病情。
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2. The patienthad difficulty breathing due to the swelling ofthe nasal mucosa.
由于鼻黏膜肿胀，患者呼吸困难。
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3. Thenasal cavities are lined withmucus, which helps trap and neutralize bacteria.
鼻腔内衬有黏液，有助于捕捉和中和细菌。