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1. Phototherapy is a treatment that uses light to treat skin conditions.
光疗是一种使用光线治疗皮肤疾病的治疗方式。
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2. During the winter, phototherapy can help improve circulation and reduce pain.
在冬天，光疗可以帮助改善血液循环并减轻疼痛。
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3. The patient was given a special lamp for phototherapy during the recovery period.
患者在康复期间被给予了一种特殊的灯进行光疗。