粉丝们用欢呼和掌声环绕着这位歌手，庆祝她的成功。

The fans were garlanding the singer with cheers and applause to celebrate her success.

garlanding 是动词 garland 的现在分词形式。garland 本意是"花环、花冠"，作为动词时表示"用花环装饰"或"环绕"。在句中比喻粉丝用欢呼和掌声环绕歌手，就像用花环装饰一样。