Complex sentence: Hu was born in Beijing, and he emigrated to Hong Kong in 1949, during which time he worked as advertising consultant, artistic designer and producer in a number of media companies, as well as a part-time English tutor.
Split into simpler sentences: Hu was born in Beijing, and he emigrated to Hong Kong in 1949. After moving to Hong Kong Hu worked in a variety of occupations, such as advertising consultant, artistic designer and producer for a number of media companies, as well as a part-time English tutor.