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1. The study on VDRL is of great significance for the prevention and treatment of AIDS.
对VDRL的研究对于预防和治疗艾滋病具有重要意义。
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2. VDRL testing is a key step in the diagnosis of syphilis.
VDRL检测是诊断梅毒的关键步骤。
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3. The patient's VDRL test came back positive, indicating he had been infected with HIV.
患者的VDRL检测结果呈阳性，表明他已被感染HIV。