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.
例句
Morris ignored the question and continued his monologue.莫里斯不理会这个问题,继续他的长篇大论。
N-VAR
长篇独白;独角戏
A monologue is a long speech which is spoken by one person as an entertainment, or as part of an entertainment such as a play.
例句
...a monologue based on the writing of Quentin Crisp.根据昆廷·克里斯普的作品改编的独角戏
英汉词典释义
n.
(戏剧)长篇独白
The comedian gave a long monologue of jokes.喜剧演员讲了一长段由笑话组成的独白。
滔滔不绝的讲话
He went into a long monologue.他一个人滔滔不绝地讲话。
英英词典释义
Noun
1. speech you make to yourself
2. a long utterance by one person (especially one that prevents others from participating in the conversation)
3. a (usually long) dramatic speech by a single actor