diligent
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
词源Middle English: via Old French from Latin diligens, diligent- ‘assiduous’, from diligere ‘love, take delight in’. - a diligent student/worker