People select shrimps during a fair in preparation for the upcoming Spring Festival in north China's Tianjin, Jan. 28, 2024. (Xinhua/Li Ran)

People select products during a fair in preparation for the upcoming Spring Festival in north China's Tianjin, Jan. 28, 2024. (Xinhua/Li Ran)

A merchant helps a customer carry a bag of rice during a fair in preparation for the upcoming Spring Festival in north China's Tianjin, Jan. 28, 2024. (Xinhua/Li Ran)

People select products during a fair in preparation for the upcoming Spring Festival in north China's Tianjin, Jan. 28, 2024. (Xinhua/Li Ran)