1、The children danced and sang a cheerful roundelay in the park.
孩子们在公园里跳舞唱着欢乐的轮唱曲。

2、They gathered around the campfire and started a roundelay, passing the song from one person to another.
他们围着篝火，开始唱起轮唱曲，将歌曲从一个人传递到另一个人。