relation/rɪˈleɪʃ(ə)n/
n.1. 家人；亲人Some of my relations, my mother's aunt and uncle, live in America.我有些亲戚，如我母亲的姑姑和叔叔，住在美国。
2. 关系；联系the relation between wages and prices工资和物价的关系
3. (pl) 关系；交往friendly relations友好关系
They have business relations with our firm.他们和我们公司有生意来往。