As the saying goes:smile is important. it means the attitude towards problems that we have met. i have a good memory of my exams. unfortunately, i failed the exam .not only was l burried in sorrow,but also l lost heart. moreover, my teacher. strict though she was, she tought me if you can't face with difficulties at smile ,you can't to be a brillant man. it was then didi l realize the importance of smile. without this experience , l wouldn't have disgested this secret