YOU SAID:
I have a background in Painting
INTO JAPANESE
私は絵画のバックグラウンドを持っています
BACK INTO ENGLISH
I have a background of painting
INTO JAPANESE
私は絵の背景を持っています
BACK INTO ENGLISH
I have a background of the picture
INTO JAPANESE
私は絵の背景を持っています
BACK INTO ENGLISH
I have a background of the picture
You've done this before, haven't you.