英语翻译我们为什么要保持一个好心情呢?因为好心情能够促进人们工作和学习,提高人们的生活质量.有利于人们身心健康.保持好心

Why should us keep a good mood?Because it can enhance our working and studying, improve the quality of our lives.Give us a healthy body.
To keep a good mood needs a sense of humor.Having a widespread interests and hobbies.Be nice to people and share more fun with others.
Good mood can make us happier.
望采纳!\(^o^)/~