Behavior is definitely illegal! The severity is related to your profit. The more you sell it, the more serious it is. Must have caused a copyright dispute.

However, it should be noted that this kind of thing is more common in universities now. Generally speaking, it's okay if no one reports it. After all, college students' wallets are still relatively tight.

In a university in Hebei province, there were even some league teachers and graduates joining hands, but they didn't take shape in the end. I would like to suggest that there are risks at this time, and we should handle them with caution.