使用了 'with every ounce of their strength' 这一形象短语，生动地描绘了竭尽全力的状态，增强了表达的感染力。
Confronted with the enemy trapped in their position, Dou Gu ordered his subordinates to withdraw the troops from one exit, deliberately leaving the other side open. His subordinates were puzzled and asked, "General, the enemy is already surrounded; even with wings, they could not escape. Besides, there are only a few hundred of them. If we besiege them for a few more days, we will certainly annihilate them completely. Why do you want to let them escape?"
Dou Gu explained, "Of course, I am not letting them escape. Right now, With no way out, they will surely fight to the death with every ounce of their strength. Moreover, the valley is rich in vegetation and water sources, so we cannot starve or thirst them out by simply holding them there. If we continue to drain our resources in this prolonged siege, even if we eventually achieve a great victory, our casualties will be heavy. Therefore, I intend to let them out and kill them while pursuing them."
面对敌军被困的局面，窦固命令部下撤走一侧出口的士兵，特意留出另一侧通道。部下们对此感到困惑不解，问道：“将军，敌军已陷入重围，就算长了翅膀也飞不出去。何况他们只有区区几百人，只要再围困几日，必定能将其全歼。不知您为何要放他们逃生？”
窦固解释道：“当然不是要放他们逃生。眼下他们退路已绝，必然个个向前，奋勇死战。况且谷内草木繁盛、水源充足，我们靠围困也无法饿死或渴死他们。若长时间如此消耗，即便我军最终大获全胜，也将付出惨重的伤亡代价。因此，我要放他们出来，在追逐中将其斩杀。”