Listen to 高效刷题背书轻音乐（八音盒） online. 高效刷题背书轻音乐（八音盒） is an Instrumental language song and is sung by 颜云飞. 高效刷题背书轻音乐（八音盒）, from the album 写作业纯音乐-刷题背书轻音乐-治愈纯音乐, was released in the year 2022. The duration of the song is 2:07. Download Instrumental songs online from JioSaavn.