童心未泯的英文是

One's childish disposition remains; still preserve traces of childishness; still retain childlike innocence

例句

Face painting is one of the most fun and popular activities on the children's party circuit today. 

面部彩绘是最有意思的游戏之一，特别是在今天人人童心未泯的今天。

This book is different. It's fun, informative, and will appeal to the young person as well as the young-at-heart. 

而这本书与众不同，它趣味性强，信息量大，既能吸引年轻人，也能使那些上了年纪但童心未泯的人产生兴趣。

Their happy gestures will make you forget the unhappy things in your life, you will smile to yourself, you will find your childish heart back. 

他们幸福的姿势会让你忘掉生活中不开心的事。你会会心地笑起来，你会发现你的童心未泯。