China's AG600M firefighting aircraft completes coldClimate complicates heritage preservationArchives give voice to immigrantsFestival animated by successSummer movies set sizzling paceChina's STEM programs rank among world's bestXi Sends Congratulatory Letter to Liangzhu ForumXi Focus: Xi Calls for Giving Better Play to Constitution's Role in GovernanceHong Kong greets 1.3 mln visits during Spring Festival holidayXi Congratulates Madagascar's President on Re