美利达达道路
study hard 勤奋学习work hard 勤奋工作 这两个是最简单直接的说发。Diligent也是一个很好的单字。如果是指读书方面的diligent，我再介绍一个单字：studious。
那个啥来着呢
“经过不懈的努力”“passes through the unremitting endeavor” 或"Through unremitting efforts."
JACK赵俊
勤奋 : (adj) hardworking; diligence;industry勤奋常会引向成功。 Diligence is often the door to success. 成功来自勤奋。 Success comes with industry. 他们的学生勤奋学习。 Their students are diligent about their studies. 我敬佩他的勤奋。 I respect him for his diligence. 这个勤奋的学生每天天亮以前就起床了。 The diligent student gets up before dawn every day
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