A presentation of the substance of a body of material in a condensed form or by reducing it to its main points; an abstract. 概要用简明的形式,并通过减少或保留其要点来对资料内容进行的描述; 摘要
I can't quote chapter and verse but I can give you the main points the author was making. 我无法引用确切的原文,但是我可以告诉你作者所述的要点。
Could we have a run-through of the main points discussed? 我们把讨论的要点归纳一下好吗?
The teacher asked me to note down the main points of the speech. 老师要求我把演说的要点记下来。