刻苦的

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

这女孩刻苦努力弥补了她在学习上迟钝。

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

他是那种以刻苦工作为乐人。

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

在他院长下，高隆邦以大热情实院刻苦规章---祈祷生活，苦行和学习。