[N-COUNT 可数名词]长篇大论；滔滔不绝的讲话 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.
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。
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[N-VAR 可变名词]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.
...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
Oxford
mono·logue(NAmE alsomono·log)/ˈmɒnəlɒɡ; NAmEˈmɑːnəlɔːɡ;ˈmɑːnəlɑːɡ/noun1[countable ]a long speech by one person during a conversation that stops other people from speaking or expressing an opinion 滔滔不绝的讲话；个人的长篇大论◆He went into a long monologue about life in America.他开始滔滔不绝地谈起美国的生活。2[uncountable , countable ]a long speech in a play, film/movie, etc. spoken by one actor, especially when alone （戏剧、电影等的）独白3[countable , uncountable ]a dramatic story, especially in verse,told or performed by one person 独角戏◆a dramatic monologue戏剧独白☞compare