The students are busy preparing for the final exam.

学生正在忙于准备期末考试。

I'm occupied in preparing for the final exams; don't bother me!

我正忙着准备期末考试，别来打扰我！

The hero at that stage must put all celebrations aside to prepare for the final battle.

那个阶段的英雄必须放下一切庆祝， 准备最后一战。

Throughout the spring of 1945, as they prepared for the final push on Berlin, the Allies engaged in a massive bombing campaign against Germany's major cities.

1945 年整个春天，当盟军准备对柏林进行最后的进攻时，他们对德国的主要城市进行了大规模的轰炸。