"Hu people have women who borrow Chinese sounds, and Han people also demodulate Hu Qin." What was the trend of ethnic integration in the Yuan Dynasty?

(1) The development of ethnic integration and the formation of new ethnic groups.

(2) The large-scale population movement in Yuan Dynasty promoted the economic and cultural development and integration of all ethnic groups.

(3) Many Han people came to the frontier and contributed to the development of the frontier; A large number of frontier ethnic groups moved into the central plains and Jiangnan; Khitan and Nuzhen gradually merged with the Han nationality; Hui nationality formed.