diligent

• Henry is the most diligent student in our class
  亨利是我们班上最用功的学生。
• He is more diligent than anyone else in his class
  他比班里的其他任何学生都勤奋。
• Sober , diligent , nice people are hard to hate
  很难憎恨这么冷静、勤劳和正派的人。
• I was very diligent in studying this course
  我修习本科目的学习态度非常认真。
• My dad is humorous and my mom is diligent
  我的爸爸十分幽默，妈妈十分勤劳。
• I have never seen such a diligent person
  我从来也没有见过像他这样勤奋的人
• He is the most diligent student that i have ever known
  他是我所知道的最用功的学生。
• A diligent lad worked at a laboratory
  一个勤奋的小伙子在一个实验室工作。
• A clever and diligent student got the first prize
  一个聪明而又勤奋的学生得了一等奖。
• A diligent detective investigates all clues
  勤奋的侦探会调查所有的线索。