relative addressing time-sharing

例句：

1. 1.The relative of the deceased is invited to the funeral.
   死者的亲戚被邀请参加葬礼。
2. 2.He is a relative of the president's son.
   他是总统儿子的亲戚。
3. 3.They are relatives by marriage.
   他们是通过婚姻关系成为亲戚的。