1. relation n. 亲属,亲戚;(relations)[pl. ](人、团体、国家之间的)关系。联系;(事物之间的)关系,联系
This party is held for friends and relations.
这个聚会是为亲戚朋友举办的。
We seek to improve relations between our two countries.
我们寻求改进我们两国间的关系。
He wants to understand the relation between rainfall and crop yields.
他想了解降雨量和农作物产量之间的关系。