刻苦

His brother is assiduous in the study of relativity.

他哥哥正苦学习相对论。

To gain a complete mastery of English, one must study very hard.

要想精通英语就必须苦努力。

He exercised strenously to keep his carcass in good condition.

他苦训练，以使身体处于良好状态。

He's the sort of person who thrives on hard work.

他是那种以苦工作为乐的人。

By dint of sheer hard work, she managed to pass all her exams.

她完全靠苦努力通过了所有的考试。

Knowlege is gained from assiduity,unwisdom is resulted from sluttery!

知识是从苦得来，无知是从懒惰美成！

She paces the whole class in studying English industriously.

她在苦学习英语上给全班同学树立了榜样。

The girl's earnest effort counterbalanced her slowness at learning.

这女孩的苦努力弥补了她在学习上的迟钝。

Their children study hard while ours never study.

他们的孩子学习很苦, 而我们的孩子从来不学习。

Keep your nose to the grindstone and you should pass the exam easily.

苦学习， 你就能不费力气地通过考试。

She’s got the makings of a good tennis player, but she needs to practise much harder.

她具备了优秀网球手的素质，但需进苦训练。

Inheritance is zero, the honesty first, study the second, the manner third, assiduous fourth, the hardhead fifth.

遗产为零，诚实第，学习第二，礼貌第三，苦第四，精明第五。

In full agreement with his abbot, Columban zealously practiced the severe discipline of the monastery, leading a life of prayer, ascesis and study.

在他的院长的首肯下，高隆邦以极大的热情实践修道院的苦规章---祈祷的生活，苦行和学习。