Before they fled the country, the enemy vainly attempted to destroy all the factories.
Before they fled the country, the enemy vainly attempted to destroy all the factories.
敌人在逃往国外前，妄图把所有工厂都毁掉。
Before they fled the country, the enemy vainly attempted to destroy all the factories.
敌人在逃往国外前，妄图把所有工厂都毁掉。