If you refer to a long speech by one person during a conversation as a monologue, you mean it prevents other people from talking or expressing their opinions.
双语例句
例： Morris ignored the question and continued his monologue.
莫里斯不理会那个问题，继续他的长篇大论。
例： the communication characteristics of both monologue and dialogue.
独白与对话共有的沟通特征。