dil·i·gent
adjective/ˈdɪlɪdʒənt/
/ˈdɪlɪdʒənt/
(formal)- showing care and effort in your work or duties
孜孜不倦的；勤勉的；刻苦的 - a diligent student/worker
勤奋的学生／工人
Word OriginMiddle English: via Old French from Latin diligens, diligent- ‘assiduous’, from diligere ‘love, take delight in’. - a diligent student/worker