我们应该保持好心情用英语怎么说

"Keep a positive attitude" 是一种常用的表达方式，意思是保持积极的心态。它的来源可能源自心理学和生活哲学，强调认真对待生活并保持积极的态度。

例句：

"It's important to keep a positive attitude, even in difficult situations." (在困难的情况下保持积极的态度是很重要的。)
"I try to keep a positive attitude every day." (我每天都试着保持积极的态度。)
"I think it's important to keep a positive attitude, so I always try to find something good in every situation." (我认为保持积极的态度很重要，所以我总是试着在每个情况中找到好的东西。)