The second dress rehearsal for the 2022 Winter Olympic Games opening ceremony was finished at the Beijing National Stadium on Saturday.

Compared with the previous practice, the one on Saturday night went through the complete process with all elements, including fireworks that lighted up the sky.

Zhang Yimou, chief director of the opening ceremony, said the concepts of the ceremony comprise of scientific and technological innovation, low-carbon and eco-friendliness as well as sports and health.