According to the website of the Chinese Embassy in the United States on August 20, at the invitation of Allen, President of the Brookings Institution, Ambassador Cui Tiankai held a video exchange with more than 20 scholars and relevant people on Sino US relations on August 13. Ambassador Cui delivered a keynote speech with the following parts: < / P > < p > at present, Sino US relations are developing in the wrong direction, which is described as “free fall”. There have always been problems and difficulties in the relations between the two countries. However, it is alarming that some people try to deny the achievements made by generations of the two countries through decades of hard work, and deliberately push the two sides to confrontation and conflict. In the case of novel coronavirus pneumonia worldwide and the world economy suffered heavy losses, countries, especially large powers, need to cooperate urgently. The deterioration of Sino US relations has also severely damaged global economic confidence and brought serious consequences to the people of the two countries and the world. Some people in the United States are keen on big country competition and strategic confrontation. Looking back at the novel coronavirus pneumonia, which is the 9 / 11, the international financial crisis and the new crown pneumonia epidemic, the three crises are undoubtedly strategic. However, they have been resolved by traditional competitive power toolbox. The world has changed. Of course, there will be differences and even competition between big powers, but this is not the reason for confrontation. Today, the power to promote cooperation among major powers is far greater than that to promote division. Stigmatization will not make anyone great. The ideological Crusade cannot solve any problems in the world today and is doomed to failure.