An overview of a situation is a general understanding or description of it as a whole.
例句
The central section of the book is a historical overview of drug use.该书的核心部分对毒品的使用作了历史概述。
英汉词典释义
n.
综览,概观,概述;概况
I’m afraid I can’t give you a general overview of the situation.I can only offer you a worm’s-eye view that is based on my own experience.我恐怕没法从总体上向你介绍这里的情况。我只能谈一下自己的切身体会。The opening chapter gives a brief historical overview of transport.第一章是运输史的简要回顾。The seminar aims to provide an overview on new media publishing.研讨会旨在综览新兴的媒体出版。
英英词典释义
Noun
1. a general summary of a subject;
"the treasurer gave a brief overview of the financial consequences"