什么样的呢?
The Marriage and Family Experience: Intimate Relationships in a Changing Society. (原始内容存档于2015-03-26). The New Joy of Sex: A Gourmet Guide to Lovemaking. International Journal of Family Medicine. Natural rewards, neuroplasticity, and non-drug addictions. 150.0 150.1 Blum K, Werner T, Carnes S, Carnes P, Bowirrat A, Giordano J, Oscar-Berman M, Gold M. (原始内容存档于2017-04-17). The Journal of