他经常回忆起他无忧无虑的童年时光。

He often recalls his ___carefree childhood days.

这让她想起了他们遥远、无忧无虑的青春时光，那时他们精力充沛、健康且充满希望。

It reminded her of their far-away, ___carefree youth when they were energetic, healthy and full of hope.

在乡村过着无忧无虑的生活是她的终极梦想。

Living a ___carefree life in the countryside was her ultimate dream.