Schools across the country have started to reopen, and "students do their winter vacation homework late at night" has become a hot search topic. Data from Meituan Xiaoxiang Supermarket shows that in the first half of the school year, the sales of essential stationery “pens” increased 5 times compared to the previous month.

In addition, Beijing and other places have also issued "health protection" notices. Many parents have placed orders for protective equipment in case of emergencies.