we
对。we are a family意思是“我们是一家人”，we are a family是表达真正血缘关系的一家人。family的含义：(大)家庭(包括父母子女及近亲)；家族;家(包括父母子女)；亲属。
family的例句
His family have been a very positive influence on him.
他的家庭对他有十分良好的影响。
Families will be better off under the new law.
新法律会使家庭经济宽裕一些。
I always think of you as one of the family.
我一直把你当成自家人。
We think of you as one of the family.
我们把你看作家中的一员。
Their family has always been well thought of around here.
他们家在这一带一直颇受敬重。
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