Classmate relation同学关系
classmate economy同学经济
a classmate of mine我的同学
meet a classmate遇见一位同学
Western house and my classmate洋楼及同学
The classmate relationship between children and theirclassmate is very ximportant partnership to the children.
儿童与同班同学的同学关系是重要的同伴关系。
参考来源 - 西北流动人口子女在校同辈群体互动模式的比较研究（研究生论文）N-COUNT（可数名词） Your classmates are students who are in the same class as you at school or college. 同班同学