A waitress from the Democratic People's Republic of Korea studies Chinese as she works, while another greets customers at the entrance of a restaurant in Kunming, Southwest China’s Yunnan province, July 22, 2015. Some 30 waitresses from the DPRK work in the restaurant and are responsible for greeting customers, ordering and delivering dishes, and taking part in performances. Their salaries are paid by the DPRK. (Photo: China News Service/Ren Dong)
