sentences:  On August 24, Ma Bufang reported that the Communists were defeated and 10,000 of them were dead.After thorough preparation, the communist II and XIX Corps attacked the city again on August 25, 1949 at dawn, and by dusk, the nationalist stronghold at Southern Mountain outside the city fell into the enemy hands.After suffering heavy casualties, the nationalist morale collapsed and the defenders outside the city fled inside and Ma Jiyuan (), the nationalist commander-in-chief of the Shaanxi-Gansu Corps fled to Xining in the evening, abandoning most of his troops.