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1. The patient developed venectasia after a long flight, which required immediate medical attention.
这名患者长途飞行后出现了静脉炎，需要立即医疗介入。
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2. The doctor prescribed medication to prevent venectasia in the future.
医生开了药来预防未来的静脉炎。
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3.The patient was advised to avoid activities that could cause venectasia, such as prolonged standing or sitting.
病人被建议避免可能导致静脉炎的活动，比如长时间站立或坐着。