一切亲戚

例句：

1. 1.My mother is a relative of my father's.
   我妈妈是我父亲的一个亲戚。
2. 2.She introduced me to her relatives.
   她向我介绍了她的亲戚。
3. 3. They are related by blood, not by marriage.
   他们通过血缘关系而不是婚姻关系相连。