https://online2.tingclass.net/lesson/shi0529/0008/8532/p51.mp3
https://image.tingclass.net/statics/js/2012
He has a background in classical music.
他有古典音樂的背景。
have a background in something就是指有某方面的背景。
I have a background in special education.我有特殊教育的背景。