出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第230页（226字）
扭转败局，变为胜利，例他冒着生命危险及时将敌情送到，我军才能集中主力攻敌弱点，转败为胜。
With vital information passed on by him，our troops were able to make a concentrated attack on the enemy and turn the tide of battle