A worker serves dishes to students who stay put on campus for the Spring Festival at a canteen of the Beijing Jiaotong University in Beijing, capital of China, on Feb. 8, 2021. Heeding the state's call for staying put for the upcoming Spring Festival, or the Chinese Lunar New Year, as a COVID-19 prevention and control measure, more than 1,000 students and faculties of the Beijing Jiaotong University chose to spend their holidy on campus. More than 700 staff members of catering, security, power supply, and medical services of the university also stuck to their posts so that those students and faculties away from their families would feel at home during the holiday. (Xinhua/Zhang Haobo)

Liu Shuaishuai, an electricity technician, checks on power supply devices at Beijing Jiaotong University in Beijing, capital of China, on Feb. 9, 2021. Heeding the state's call for staying put for the upcoming Spring Festival, or the Chinese Lunar New Year, as a COVID-19 prevention and control measure, more than 1,000 students and faculties of the Beijing Jiaotong University chose to spend their holidy on campus. More than 700 staff members of catering, security, power supply, and medical services of the university also stuck to their posts so that those students and faculties away from their families would feel at home during the holiday. (Xinhua/Xu Qin)

Teachers and students have a discussion at a laboratory at Beijing Jiaotong University in Beijing, capital of China, on Feb. 9, 2021. Heeding the state's call for staying put for the upcoming Spring Festival, or the Chinese Lunar New Year, as a COVID-19 prevention and control measure, more than 1,000 students and faculties of the Beijing Jiaotong University chose to spend their holidy on campus. More than 700 staff members of catering, security, power supply, and medical services of the university also stuck to their posts so that those students and faculties away from their families would feel at home during the holiday. (Xinhua/Xu Qin)

University counselors and student volunteers prepare gift packages for students who stay put on campus for the Spring Festival at Beijing Jiaotong University in Beijing, capital of China, on Feb. 9, 2021. Heeding the state's call for staying put for the upcoming Spring Festival, or the Chinese Lunar New Year, as a COVID-19 prevention and control measure, more than 1,000 students and faculties of the Beijing Jiaotong University chose to spend their holidy on campus. More than 700 staff members of catering, security, power supply, and medical services of the university also stuck to their posts so that those students and faculties away from their families would feel at home during the holiday. (Xinhua/Xu Qin)

Guan Ke (R) and Sun Bin, both faculty members, have a discussion on their research project at a laboratory of Beijing Jiaotong University in Beijing, capital of China, on Feb. 9, 2021. Heeding the state's call for staying put for the upcoming Spring Festival, or the Chinese Lunar New Year, as a COVID-19 prevention and control measure, more than 1,000 students and faculties of the Beijing Jiaotong University chose to spend their holidy on campus. More than 700 staff members of catering, security, power supply, and medical services of the university also stuck to their posts so that those students and faculties away from their families would feel at home during the holiday. (Xinhua/Xu Qin)

A worker sanitizes the hallway of the hospital of the Beijing Jiaotong University in Beijing, capital of China, on Feb. 8, 2021. Heeding the state's call for staying put for the upcoming Spring Festival, or the Chinese Lunar New Year, as a COVID-19 prevention and control measure, more than 1,000 students and faculties of the Beijing Jiaotong University chose to spend their holidy on campus. More than 700 staff members of catering, security, power supply, and medical services of the university also stuck to their posts so that those students and faculties away from their families would feel at home during the holiday. (Xinhua/Zhang Haobo)

Nureli (L) and Sun Wenjian, both students, attach Spring Festival couplets to their dormitory room at Beijing Jiaotong University in Beijing, capital of China, on Feb. 8, 2021. Heeding the state's call for staying put for the upcoming Spring Festival, or the Chinese Lunar New Year, as a COVID-19 prevention and control measure, more than 1,000 students and faculties of the Beijing Jiaotong University chose to spend their holidy on campus. More than 700 staff members of catering, security, power supply, and medical services of the university also stuck to their posts so that those students and faculties away from their families would feel at home during the holiday. (Xinhua/Xu Qin)

An overseas student from Turkmenistan tries Chinese traditional paper-cutting at Beijing Jiaotong University in Beijing, capital of China, on Feb. 8, 2021. Heeding the state's call for staying put for the upcoming Spring Festival, or the Chinese Lunar New Year, as a COVID-19 prevention and control measure, more than 1,000 students and faculties of the Beijing Jiaotong University chose to spend their holidy on campus. More than 700 staff members of catering, security, power supply, and medical services of the university also stuck to their posts so that those students and faculties away from their families would feel at home during the holiday. (Xinhua/Zhang Haobo)

Hu Xinyi, a faculty member, makes psychological counseling appointments for her students at Beijing Jiaotong University in Beijing, capital of China, on Feb. 9, 2021. Heeding the state's call for staying put for the upcoming Spring Festival, or the Chinese Lunar New Year, as a COVID-19 prevention and control measure, more than 1,000 students and faculties of the Beijing Jiaotong University chose to spend their holidy on campus. More than 700 staff members of catering, security, power supply, and medical services of the university also stuck to their posts so that those students and faculties away from their families would feel at home during the holiday. (Xinhua/Xu Qin)

Overseas students try Chinese traditional paper-cutting at Beijing Jiaotong University in Beijing, capital of China, on Feb. 8, 2021. Heeding the state's call for staying put for the upcoming Spring Festival, or the Chinese Lunar New Year, as a COVID-19 prevention and control measure, more than 1,000 students and faculties of the Beijing Jiaotong University chose to spend their holidy on campus. More than 700 staff members of catering, security, power supply, and medical services of the university also stuck to their posts so that those students and faculties away from their families would feel at home during the holiday. (Xinhua/Zhang Haobo)

A member of student service staff checks shift logs in the lobby of a student dormitory building at Beijing Jiaotong University in Beijing, capital of China, on Feb. 8, 2021. Heeding the state's call for staying put for the upcoming Spring Festival, or the Chinese Lunar New Year, as a COVID-19 prevention and control measure, more than 1,000 students and faculties of the Beijing Jiaotong University chose to spend their holidy on campus. More than 700 staff members of catering, security, power supply, and medical services of the university also stuck to their posts so that those students and faculties away from their families would feel at home during the holiday. (Xinhua/Xu Qin)

A student has her body temperature checked before entering a canteen at Beijing Jiaotong University in Beijing, capital of China, on Feb. 8, 2021. Heeding the state's call for staying put for the upcoming Spring Festival, or the Chinese Lunar New Year, as a COVID-19 prevention and control measure, more than 1,000 students and faculties of the Beijing Jiaotong University chose to spend their holidy on campus. More than 700 staff members of catering, security, power supply, and medical services of the university also stuck to their posts so that those students and faculties away from their families would feel at home during the holiday. (Xinhua/Zhang Haobo)