Xi emphasizes no letup in drive to combat air pollutionChina conducts inXi congratulates Zardari on election as Pakistani presidentU.S. chip firms urge Biden administration to approve sales to China as ban backfiresVon der Leyen wins conservatives' backing to lead EUForeign Ministry helped thousands of overseas Chinese, Wang saysU.S. chip firms urge Biden administration to approve sales to China as ban backfiresSpokesman calls on U.S. to translate commitment into actionChina conducts inWang warns against stirring trouble in the Korean Peninsula