短语词组短语Be diligent in practice 勤于练习diligent in practice 勤于练习be diligent in 勤于Diligent In Thinking 勤于思考Be diligent in accumulation 勤于积累diligent in sth 做…很勤奋be diligent in action 力行diligent in study 笃学;勤奋好学 返回 diligent in