A visitor views award-winning works at a public benefit design activity themed on promoting thrift and curbing waste in Beijing, capital of China, Dec. 27, 2020. The works release ceremony of the activity was held in Beijing on Sunday. All the award-winning works will be offered to public cultural and tourist facilities for free. (Xinhua/Chen Jianli)

A visitor views award-winning works at a public benefit design activity themed on promoting thrift and curbing waste in Beijing, capital of China, Dec. 27, 2020. The works release ceremony of the activity was held in Beijing on Sunday. All the award-winning works will be offered to public cultural and tourist facilities for free. (Xinhua/Chen Jianli)

Liu Xin, associate professor from Shanghai Academy of Fine Arts, poses for photos in front of his award-winning works at a public benefit design activity themed on promoting thrift and curbing waste in Beijing, capital of China, Dec. 27, 2020. The works release ceremony of the activity was held in Beijing on Sunday. All the award-winning works will be offered to public cultural and tourist facilities for free. (Xinhua/Chen Jianli)

A visitor takes photos of award-winning works at a public benefit design activity themed on promoting thrift and curbing waste in Beijing, capital of China, Dec. 27, 2020. The works release ceremony of the activity was held in Beijing on Sunday. All the award-winning works will be offered to public cultural and tourist facilities for free. (Xinhua/Chen Jianli)