My niece Mary is a Senior 3 student ,who devoted herself to her lessons every day.Last Saturday, as usual, she went to several class. In the evening, she continued to study at home until deeply into the night.She was too sleepy and tired that she couldn't work effectively. In Sunday morning,she was about to do her lessons while her father came up and advised her take a break. Soon they came up with a good idea.They decided to go cycling in the countryside.Mary enjoyed herseldf,competing and chatting with her father,and felt relaxing in the open air. On the Monday, Mary was energetic and active in class.She spent the whole day in the countryside, and Mary said what she had done was worthwhile.