Hong Kong CNN  —  Chinese leader Xi Jinping has hit out at “bullying” and “hegemonism,” in his first public remarks since a temporary truce over tariffs was agreed in the trade war between the United States and China . Great changes unseen in a century are accelerating, which have “made unity and cooperation among nations indispensable,” Xi told an audience of Latin American and Caribbean officials — including the presidents of Brazil, Colombia and Chile — gathered in Beijing for a summit on