大学英语作文：Music that's always on top永远的流行音乐

　　we all like pop music but what is it?the definition of pop music is flexible.music that is considered to be pop is constantly changing.

　　我们都喜欢流行音乐，但什么才是流行音乐呢?流行音乐的定义非常灵活。因为只要是流行的音乐通常都是不断变化着的。