Original sentence: As a result, the Han Chinese felt themselves oppressed.At the same time, the Dynasty required considerable military expenditure to maintain its vast empire.In 1333, the Mongol Yuan Dynasty was at its height.The Yellow River flooded consistently, and other natural disasters also occurred
Edited sentence: Begininng in 1333, the Yuan Dynasty was at its height of total corruption.In the meanwhile, the Yuan Dynasty was unlimitedly expanding the military expenditure to maintain its vast empire.The Yellow River floods consistantly, and natural disasters came in succession.This added up to the continuous oppression of the Han Chinese, who was officially the lowest in the social structure at the time