Any parents should place considerable emphasis on their children to keep the balance between

play and study. As an old saying goes: All work and no play makes Jack a dull boy.

任何家长都应非常重视保持孩子在学习与玩耍的平衡，正如那句老话：只工作，不玩耍，聪明的孩子会变傻。

It is commonly thought that our society had dramatically changed by modern science and

technology, and human had made extraordinary progress in knowledge and technology over the