Colleague relationship. Both Xu Changhui and Xu Aijie work in China Construction Xinjiang Construction Enterprise. Xu Aijie is the Party Secretary and Chairman of China Construction Xinjiang Construction Engineering, and Xu Changhui is the Chief Economist of China Construction Xinjiang Construction Engineering. Many members who hold different positions in the same organization or company are called colleagues, so Xu Changhui and Xu Aijie are colleagues.