「儿歌」英文怎么说？

nursery rhyme ~ 儿歌、童谣

Jack and Jill is a traditional English nursery rhyme which dates back at least to the 18th century. 

Jack and Jill 是一首传统的英文儿歌，它最起码可以追溯到18世纪。

Nursery rhymes bring back fond memories of your childhood. 

儿歌可以勾起你很多愉快的童年回忆。