one-parent/single-parent families

• 单亲家庭

one-parent/single-parent families的用法和样例：

例句

1. Why are there so many singled parent families?
   为什麽会有那麽多的单亲家庭？
2. The child comes from a single parent family.
   这个孩子来自一个单亲家庭。