assiduous

adj

• ① 勤勉的,孜孜不倦的(=diligent)
  • She is an assiduous student.她是一名用功的学生。
  • The report was the result of three years' assiduous research.那篇报告是三年勤奋研究的成果。
  • He is assiduous in his duties.他勤于职守。

• ② 殷勤的