relative与relation有什么区别

relation 指的是关系(亲戚/人际), 是名词. (平常一般不指亲戚)
relative 是形容词, 指的是和什么有关联的, 或相比之下的关系.

relation: Jamie has just started a relation with Jake.
NOT: Jake is a relation of mine. WRONG!!!

relative:
(和什么有关联的) Jake is a relative of mine.
(相比之下的关系) Relative to Jamie, Jake is very lazy.

你大概问的是两个名词的区别吧？

relative 亲戚
relation 关系

相差还是挺大滴……