Complex sentence: Huang was appointed China Ambassador to Hungary in 1950, he was transferred to China Ambassador to Indonesia in 1954, at the same year, Huang attended the Asian-African Conference with Zhou Enlai.
Split into simpler sentences: Huang was appointed China's Ambassador to Hungary in 1950, he was transferred to China's Ambassador to Indonesia in 1954. In the same year, Huang attended the Asian-African Conference with Zhou Enlai.