This "first representative sample of planet earth," the authors wrote, "was used to explore the reasons why 'happiness' is associated with higher income."

这项“地球人的首个代表性样本”，作者写道，“被用于探寻为什么‘幸福’与高收入相关的原因。”

youdao

This "first representative sample of planet earth," the authors wrote, "was used to explore the reasons why 'happiness' is associated with higher income."

这项“地球人的首个代表性样本”，作者写道，“被用于探寻为什么‘幸福’与高收入相关的原因。”

youdao