to hold forth
[phrase form: hold]
01
长篇大论, 高谈阔论
to talk at length about a topic, often in a manner that others might find uninteresting or boring
例子
At the family gathering, Uncle Bob held forth about his extensive stamp collection, leaving everyone looking for an escape.
在家庭聚会上，鲍勃叔叔滔滔不绝地谈论他广泛的邮票收藏，让每个人都想找借口离开。
The professor held forth on the intricacies of quantum physics, losing most of the class within minutes.
教授滔滔不绝地讲述量子物理学的复杂性，几分钟内就让大部分学生失去了兴趣。
