兢兢业业

HSK 7-9

jīngjīngyèyè

diligent; conscientious; working hard

assiduous

他工作非常兢兢业业。

tā gōngzuò fēicháng jīngjīngyèyè

He works very conscientiously

她总是兢兢业业地完成任务。

tā zǒngshì jīngjīngyèyè de wánchéng rènwù

She always performs her tasks with great diligence