On September 19-20, 2022, invited by the International Exchange and Service Center of the Ministry of Human Resources and Social Security, Ma Yanhong, a lecturer from the School of Microelectronics, participated in the online training course of "China Skills Together with Africa" and gave a lecture on the interpretation of the World Championship in Optoelectronics Technology. The training covered four competitions, including optoelectronic technology, welding, beauty and hairdressing, and hotel service. Lecturer Ma's lecture was well appraised. (by Chuanping Zhong, School of Microelectronics)