interrelationship
noun [ C or U ] uk/ˌɪn.tə.rɪˈleɪ.ʃən.ʃɪp/ us/ˌɪn.t̬ɚ.rɪˈleɪ.ʃən.ʃɪp/ (also interrelation, /ˌɪn.tə.rɪˈleɪ.ʃən/ /ˌɪn.t̬ɚ.rɪˈleɪ.ʃən/)
相互关联，相互关系
the way in which two or more things or people are connected and affect one another
the interrelationship between smoking and respiratory disease 吸烟和呼吸道疾病之间的相互关系