As the saying goes, "Cheerfulness is health.Having a light heart is better than taking good medicine to relieve pain and sufferings", I believe that it is important to keep a good mood as much as possible in our lives.
俗话说， "开心就是健康。保持轻松愉快的心情比吃良药更能解除病痛"，我相信尽量保持良好的心情在我们的生活是很重要的。
