With Donald Trump set to return to the White House in a few weeks, America faces challenges on multiple fronts, from jobs and inflation to drug abuse and political polarization. Is China part of the problem or the solution? President Xi Jinping and President Joe Biden met in Lima, Peru, on the sidelines of the APEC meeting. In contrast to the changes taking place across the United States, President Xi talked about what will not change from China's end. CGTN's Liu Xin was in San Francisco to cover the previous Xi-Biden meeting. Here's her personal take on the two leaders' latest sit-down.