Minor courses cannot be retaken, and minor courses do not affect graduation and obtaining a degree certificate.
But when looking for a job or studying abroad, it is not very beautiful. If it is not a professional course, you can try to eliminate it.
The minor is organized by colleges and universities themselves, and the hours are studied in the form of credit system. After completing a certain number of credits, the school will issue a certificate of completion of the corresponding major (generally more than 25 credits). Different from the first degree, the second degree is awarded a minor degree and a double degree (non-national standard form) on the basis of minor, after passing the graduation examination and thesis defense.