Ever since ancient times, he points out, procreation and carrying on the family line have been considered the purpose of sexual relations, and the term marriage is generally synonymous with gaining a daughter-in-law.
他指出，自古以來，中國人對男女之間的關係，就一直強調為綿延後代；而結婚一詞，一般則常常以「討兒媳」取代。