保持健康
health has become a very important part of our life,and there are many ways to keep heathy. first,you can eat more fruit and vegetables,and you'd better drink more warn water.next,you have to do lots of exercise.and having at least 8 hours'sleep a night.remember,don't drink coffe or tea before you go to bed,don't eat too much sugar and don't work or study too late,it will make you too tired.
