Complex sentence: Among the most prized collections of the NLC are rare and precious documents and records from past dynasties in Chinese history, and it also houses official publications of the United Nations and foreign governments and a collection of literature and materials in over 115 languages.
Split into simpler sentences: Among the most prized collections of the National Library of China are rare and precious documents and records from past dynasties in Chinese history. It houses official publications of the United Nations and foreign governments and a collection of literature and materials in over 115 languages.