October 6th, 221. On October 6th, 221, the guests of the program "Open the Door for Good Luck" included Cai Ming, Sa Beining, Wang Bingbing and others, and staged a wonderful and exciting public welfare dream relay race. Sa Beining's public welfare dream as a contestant was to add sports facilities for the people's primary school in Bijie, Guizhou, and finally won a public welfare dream fund of 11, yuan, so Sa Beining's participation in the 221 Open the Door for Good Luck was the issue on October 6th, 221. "Open the door" is a variety show of puzzle games launched by cctv-3. The program encourages ordinary people to realize their family dreams through games, to explore and show the brilliance of ordinary people's humanity through various artistic methods, and to sing with the audience emotionally.