First of all, from the perspective of my brother, I understand why my brother bullied my sister. You can't teach your brother a lesson as soon as you come up. You need to know what happened and judge right and wrong. If my brother is wrong, he needs education and guidance. If my sister is wrong, she needs to apologize to her brother and encourage him to tolerate her.

If you are all children of several years old, you need to use some tricks to convince your younger brother. For example, when a younger sister is young, a brother should shoulder the responsibility of protecting her. Although he may not understand, he still has to say it several times and use some examples to help him understand. There is another man's truth that should be told to him, through which he can gradually change himself.