求翻译：师长命令我们营绕到敌人后方发起突然袭击。然而，要绕到敌人后方，我们必须越过一片沼泽地。我们很多人担心会陷入泥潭之中。我们营长决定冒一下险。我们在夜幕掩盖下出发，不顾困难，奋勇向前。幸运的是，夜间温度突然下降到摄氏零下20度，烂泥地都结上了冰。由于这寒冷的天气，我们于天亮前到达并从敌人后方发起进攻。这一下扭转了战局。敌人没有防备，不久便投降了是什么意思？

The division commander ordered us to camp around to the enemy's rear and launched a surprise attack. However, around to the enemy's rear, we have to cross a swamp. Many of us fear to fall into the quagmire. Our battalion commander decided to take a chance. Under the cover of night, regardless of the

Our battalion commander ordered a surprise attack launched around the enemy's rear. However, in order to bypass the enemy's rear, and we must be crossed a marshland. We have a lot of people worry that it will become bogged down. Battalion Commander decision we take the risk. We at nightfall, despite

Commander ordered us to camp around to behind enemy lines to launch surprise attacks. However, around to behind enemy lines, we must cross a swamp. Many of us worry that it will be bogged down. Our Battalion Commander decided to take a risk. We set off at night under the cover, despite difficulties