"不断辱骂和嘲弄" can be translated into English as "constantly berating and ridiculing" or "continually hurling insults and making fun of".
"Constantly berating and ridiculing" emphasizes the ongoing and unrelenting nature of the verbal abuse and mockery.
"Continually hurling insults and making fun of" conveys a similar meaning, focusing on the act of repeatedly throwing insults and engaging in mockery.
Both expressions are suitable depending on the context and the desired level of formality.