Someone who is conscientious is very careful to do their work properly.
例句
We are generally very conscientious about our work...我們普遍對工作都非常認真。Virginia was still struggling to be a conscientious and dedicated mother.弗吉尼婭還在盡力成為一位勤勤懇懇、全心奉獻的母親。
英漢詞典釋義
adv.
認真地,負責盡職地
She discharged all the responsibilities of a minister conscientiously.她認真地履行部長的一切職責。He kept silent,eating just as conscientiously but as though everything tasted alike.他一聲不吭,悶頭吃著,仿佛桌上的飯菜都一個味兒。