Photo taken on Aug. 24, 2018 shows Xu Jing (R) teaching Raphael Tuju in Nairobi, capital of Kenya. Xu Jing, who teaches at the University of Nairobi's Confucius Institute, is the chinese teacher of Raphael Tuju, the Secretary General of the ruling Jubilee Party of Kenya. Xu's steely guidance is expected to boost Tuju's proficiency in mandarin as he occupies a vantage position to deepen China-Kenya economic, political and cultural ties. (Xinhua/Li Yan)