mistreat
verb [ T ] uk/ˌmɪsˈtriːt/ us/ˌmɪsˈtriːt/
虐待
to treat a person or animal badly, cruelly, or unfairly
Both parents have denied charges of mistreating their children. 父母双方均否认虐待子女的指控。
I think people who mistreat their pets should be banned from keeping them. 我认为虐待宠物的人应当被禁止养宠物。