A bad mood is bad enough to cause you to lose self-confidence and leaves you helpless with all your worries and troubles in mind.坏心情是以使你丧失自信心、烦恼、忧虑和无能为力。
always remember to keep a happy mood wherever you go or whatever you do.无论在哪里，无论做什么，都要保持心情愉快。
As the saying goes, “Cheerfulness is health.俗话说，“开心就是健康。
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.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。
Keeping a good mood makes us stay in high spirit and concentrate on our work or study, which is a premise for our efficient work or study.保持好的心情可以使我们停留在高精神层次，专注于我们的工作或学习，是我们有效工作或学习的前提。
I miss autumn of my hometown , it dry and comfortable and not like here so wetand cold !我想念家乡的秋天，干燥和舒适，不像这里那么潮湿和寒冷！
keeping a good mood is keeping a positive attitude.保持良好的心情就是保持积极的态度。