A study by Durex found that the average couple has sex 45 times a year, less than half the global average of 103 times.

 
  • 据一项杜蕾斯进行的调查结果,日本一对夫妇平均每年做爱45次,不及全球每对夫妇平均年做爱103次的一半水平。
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