他是班上最勤奋的学生。

He is the most diligent student in his class.

胜利属于最勤奋的人。

Victory belongs to the most hard-working people.

她是他们三个中最勤奋的。

She is the most diligent of the three.

刘翔是我所了解的最勤奋的运动员。

Liu Xiang is the most hardworking sportsman that I have ever known.

李华是我认识的学生中学习最勤奋的。

Li Hua is the most diligent student that I have ever known.

爱狗者中最勤奋的是养德国牧羊犬的，最整洁的是养博德猎狐犬的。

The most hardworking dog lovers owned German Shepherds and the neatest dog owners had Border Terriers.

凡是在科学技术上有建树者，都是工作最勤奋，并且勇于创新的人。

Those who have made original contributions to science and technology are the ones who have worked the hardest and have not been afraid to break new ground.

外国人不但觉得汉语中的四声调很难掌握，而且那些陌生的语法和死记硬背的成千上万的汉字也让他们头疼，似乎只有最勤奋的学生才学得会。

Not only do foreigners find it difficult to master the four tones of Mandarin, but the alien grammar and the difficulty of rote-learning thousands of words overcome all but the most diligent students.