Students and teachers take part in an event celebrating the 80th anniversary of the founding of the Beijing Institute of Technology in Beijing, capital of China, Sept. 19, 2020.

A student speaks during an event celebrating the 80th anniversary of the founding of the Beijing Institute of Technology in Beijing, capital of China, Sept. 19, 2020.

Students take part in an event celebrating the 80th anniversary of the founding of the Beijing Institute of Technology in Beijing, capital of China, Sept. 19, 2020. (Photos: Xinhua/Ren Chao)

Students and teachers take part in an event celebrating the 80th anniversary of the founding of the Beijing Institute of Technology in Beijing, capital of China, Sept. 19, 2020.

Teachers take part in an event celebrating the 80th anniversary of the founding of the Beijing Institute of Technology in Beijing, capital of China, Sept. 19, 2020.