他们玩的愉快用英文怎么说

"They're having a great time."

来源：这是一个通用的英语短语，表示一组人正在玩得很开心。

例句：

"The kids are having a great time at the park."（孩子们在公园里玩得很开心。）
"It looks pke everyone is having a great time at the party."（看起来每个人都在聚会上玩得很开心。）
"I'm glad you're having a great time on your vacation."（我很高兴你度假时玩得很开心。）