Bet365 lotto review Before the arrival of international law，East Asia once formed a long-term and stable regional order with China at the core。The main supporting element in daily life，is a regional public good that benefits all of East Asia。With the reorganization of modern order and the renewal of public goods，The trend and development of regional relations，An unexpected change has also occurred。However，In East Asian countries, especially in the new era, China’s public goods have once again benefited regional countries and the world，Pay attention to and understand the relationship between the evolution history of public goods and the emergence mechanism of regional systems，It may reveal and solve blind spots and blind area problems in related research fields，Provide new dimensions of observation and meaningful revelations。

　　Keywords:Regional public goods  Pre-modern East Asian system  Modern treaty system  Geoecology  Replacement mechanism

　　AuthorHan Dongyu，Professor of World Civilization History Research Center, School of History and Culture, Northeast Normal University (Changchun 130024)。