快乐无忧的英语怎么说

快乐无忧的英文表达为 “carefree” 或 “unworried.”

“Carefree” 来源于中文词语 “无忧无虑”，意思是没有担忧或烦恼，享受生活的高兴。

例句：

We spent the day at the beach, feeling carefree and happy. (我们在海滩度过了一整天，感觉无忧无虑，高兴极了。)
She lives a carefree life, free from worries and stress. (她过着无忧无虑的生活，没有担忧和压力。)

“Unworried” 表示不担心或不忧虑的意思。

例句：

He seemed unworried about the future, confident that everything would work out. (他对未来似乎不忧虑，确信一切都会好起来。)
She was unworried about the outcome of the exam, as she had studied hard. (她对考试结局不忧虑，由于她进修很努力。)