A good student I think should be careful in his studies. The more he studies the more he will increase his kuowledge. Without enough knowledge we cannot make great contributions to our country.
To take care of one's own body is another important thing for a good student to do. Anyone who hasn't got a strong body can do nothing for his country even if he has much knoeledge. To have a strong body is really very important for a student.
Lastly we are sure to meet with many diffculties in our studies. The brave student work hard to overcome them but the weak ones give up halfway. If we keep on fighting against all diffculties we shall succeed in the long run.