Green Grow the Rushes O

Từ điển Oxford Advanced Learner 8th

Green Grow the Rushes O [Green Grow the Rushes O] BrE NAmE
an old English ↑folk song in which the line ‘Green grow the rushes O’ is repeated in every verse. Each verse names a number of people or things, mostly connected with the Bible, and repeats all the things named in the previous verses. The song is sometimes sung by children in British schools.