血亲

例句：

1. 1. He is a distant relative of the family.
   他是这个家庭的一个远亲。
2. 2. The term "blood relation" often refers to close relatives.
   “血亲”这个词通常指的是近亲。
3. 3. In some cultures, blood relations are considered more important than marriage.
   在某些文化中，血亲比婚姻更重要。