Complex sentence: Nearly 500 people in total were injured, and a further 94 people are believed to be still buried in the collapsed building from a disaster that struck during the most important family holiday in the Chinese calendar--the Lunar New Year holiday.
Split into simpler sentences: Nearly 500 people in total were injured, and a further 94 are still unaccounted for. More than 100 are believed to be still buried in the collapsed building from a disaster that struck during the most important family holiday in the Chinese calendar--the Lunar New Year holiday.