The 2018 commencement ceremony of Tsinghua University is held in Beijing, capital of China, July 8, 2018. Over 3,000 graduates attended the ceremony on Sunday. (Xinhua/Ju Huanzong)

A graduate gives a speech at the 2018 commencement ceremony of Tsinghua University held in Beijing, capital of China, July 8, 2018. Over 3,000 graduates attended the ceremony on Sunday. (Xinhua/Ju Huanzong)

Graduates pose for photos during the 2018 commencement ceremony of Tsinghua University held in Beijing, capital of China, July 8, 2018. Over 3,000 graduates attended the ceremony on Sunday. (Xinhua/Ju Huanzong)

President of Tsinghua University Qiu Yong (L) arranges academic dress for a graduate during the 2018 commencement ceremony of Tsinghua University held in Beijing, capital of China, July 8, 2018. Over 3,000 graduates attended the ceremony on Sunday. (Xinhua/Ju Huanzong)