马克比他班上其他学生学习刻苦。

Mark works harder than the other students in his class.

他学习刻苦并成为老师最好的学生.

He studied very hard and became his best pupil.

我是一个做事踏实、学习刻苦、有上进心的学生。

I am a practical work, study hard, self-motivated students.

她学习刻苦。她喜欢唱歌与跳舞。她也爱好体育运动。大家都说她是个好学生。

She works hard. She likes singing and dancing. She is good at sports, too. Everybody says she is a good student.

老师们工作努力，严格要求学生，是他们教会了我们如何做一个有用的人；学生们学习刻苦，许多学生甚至秉烛夜读。

It is they who teach the students how to be useful persons. All the students are diligent.