the happiness of the family is consisted in the union of its member

这句话的意思是“家庭的幸福是建立在家庭成员和谐之上的.”is consisted in是被建立、被组成的意思,是被动语态,consist in是组成的意思,这句话显然要用被动语态,用了后者这句话的意思就变的不伦不类了“家庭的幸福组成家庭成员的和谐.”