ReadWriteQuiz
Chinese dictionary
slstudy diligently and train hard; diligent study and strenuous training
经过几年的勤学苦练，他的技术大大提高了。
After years of hard work, his skills improved greatly.
经过几年的勤学苦练，他的技术大大提高了。
After years of hard work, his skills improved greatly.