sentences:  On April 18, the railways reaching the city was successfully severed.Two regiments of the 30th Division of the nationalist 71st Army under the command of Chen Mingren (陈明仁) attacked the enemy positions from the south from Haifeng Village (Haifeng Tun, 海丰屯), Pobozi (泊脖子), and Duck Lake Pao (Ya Hu Pao, 鸭湖泡) regions, but were beaten back three times consecutively.After the initial setback, Zheng Dongguo (郑洞国) held a military conference on April 19.