勤勉 /tɕʰǐn miǎn/ Adjective

English: assiduous
한국어: 성실한

Example

她对学习新软件的努力是【勤勉的】(勤勉/刻苦/孜孜不倦)——她对学习新软件的努力是孜孜不倦的。
She was assiduous in her efforts to learn the new software.
强调学习过程中的专注和不间断。