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1. Radiotherapy is a treatment method used to treat cancer by emitting radiation from a machine.
放射治疗是一种通过机器发射辐射来治疗癌症的方法。
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2. The patient was treated with radiotherapy for several months before the surgery.
患者在手术前接受了几个月的放射治疗。
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3. Radiation therapy has become an increasingly popular option for treating certain types of cancer.
放射治疗已成为治疗某些类型癌症越来越受欢迎的选择。