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健康的性爱能改变一个家庭一成不变的生活方式。医学专家通过长期的科学研究和临床试验发现,性爱对身体健康有巨大的促进作用。美国的一项研究显示,每周两次性生活,对男
Healthy sex can change a family’s unchanging lifestyle. Medical experts through long-term scientific research and clinical trials found that sex has a huge role in promoting health. A study in the United States shows sex twice per week for men