/iknow-pic.cdn.bcebos.買粉絲/4afbfbedab64034fc01cc5cea4c379310b551d20?x-bce-process=image/resize,m_lfit,w_450,h_600,limit_1/quality,q_85買粉絲s://iknow-pic.cdn.bcebos.買粉絲/9f2f070828381f3035378b61a2014c086f06f0c8?x-bce-process=image/resize,m_lfit,w_450,h_600,limit_1/quality,q_85

除了政治上的需求，明朝作為天朝上國，統治者需要向天下宣傳禮儀教化和進行經貿往來，以此來鞏固“天下共主”的統治......