After losing this decisive battle, the general was forced to concede.

输掉了这场决定性的战役后，那位将军不得不承认失败。

They are ready to fight a decisive battle.

他们做好会战的准备。

Tomorrow there would be a decisive battle.

明天将有一场决定性的战斗。

The enemy lost heavily in the decisive battle.

敌人在决战中损失惨重。

They fought a decisive battle [fight, war].

他们打了决定性的一仗。