茫茫草地,遍地水草沼泽泥潭;靠吃野菜、草根、树皮充饥;天气一日三变,夜间气温降至零摄氏度左右;官兵同甘共苦,在死神威胁下走出草地。 The vast grassland swamps all over the water and marsh; by eating wild vegetables, grass roots and tree barks, the weather is changing day by day, and the temperature drops to zero degrees Celsius at night; the officers and men work side by side with each other and walk out of the grassland under the threat of death.