The typical family structure of Freud's patients involved two parents and two children.

弗洛伊德的病人们的典型家庭结构包括一对父母和两个孩子。

What are the changes in family structure?

家庭结构有什么变化？

Children need a stable family structure to feel secure.

孩子们需要稳定的家庭结构才有安全感。

Changes in family structure thus have a large impact on the economy.

因此，家庭结构的变化对经济有重大影响。

Rich has the opposite family structure: three daughters and one son.

里奇正好相反：三个女儿和一个儿子。