family的复数是families，family指家庭时是一个整体概念，是单数，而当family指家人时是复数，因为它指家庭成员。
例句：
He leans heavily on his family.
他在很大程度上依赖他的家庭。
I came from a musical family.
我来自一个音乐家庭。
扩展资料
You have shamed your family.
你使你的家庭蒙受了耻辱。
On the wall is the family crest.
墙上是家族饰章。
They were an insular family.
他们一家人与世隔绝。
