尽最大努力 try one’s best, exert one’s utmost, burn the midnight oil, spare no pains/efforts in doing, have one’s brain racked, go to any length

例句：

Many Chinese students exert their utmost for the glorious victory in the intense competition, which is called College Entrance Test.

许多中国学生为了在被称作高考的激烈的竞争中取得辉煌的胜利而竭尽全力。

They burn the midnight oil preparing for the test.

他们点灯熬夜准备考试。

They spare no pains in improving their grades.

他们不遗余力地提高成绩。

They have their brain racked tackling intricate problems.

他们绞尽脑汁解决复杂的问题。

They would go to any length only for the exciting moment of stepping into their dream universities.

他们会不惜一切代价只为了进入梦想中的大学这一激动人心的时刻。