You can't. You need to show a 72-hour negative nucleic acid test certificate, a healthy sapphire code and a normal measurement test before you can enter and leave the announcement place. Beijing is the capital of People's Republic of China (PRC), a municipality directly under the Central Government, a national central city and a megacity. It is also the political center, cultural center, international exchange center, scientific and technological innovation center of China approved by the State Council, and one of China's famous historical and cultural cities and ancient capitals.