China and the U.S should each run their domestic affairs well while shouldering international responsibilities, Chinese President Xi Jinping said on Tuesday during the virtual meeting with U.S. President Joe Biden. According to Ruan Zongze, executive vice president of the China Institute of International Studies, the more China develops, the more it can contribute to the world. Wang Dong, an expert on China-U.S. relations, said that only when China-U.S. ties are stabilized, can the two countries better cope with global challenges for mankind.