This red warning means that "those with protection conditions" can't stop playing.

In other words, if your school is equipped with an air purifier and a fresh air system, there is no need to suspend classes!

If your school has not installed these facilities and closed classes, and the local authorities have issued a red warning or issued a request to close classes, but your school has not closed classes, then your school is fooling around. It is suggested to report to the Education Commission, and at the same time go to Weibo to find the media to break the news!