I think at the beginning of each book a brief introduction to it is necessary.

我认为每本书开头的简短介绍都是很有必要的。

youdao

Beginning with a brief tour of the filesystem, we take you deep into the dot (.) of your directory listing so you can get the most from your CLI.

从简单浏览文件系统开始，我们带您深入讨论目录列表中的点(.) ，这样您就能够最大限度地利用命令行界面了。

youdao

A brief night-time stop at Jekaterinburg marked the beginning of Siberia.

在捷卡特琳堡的一次短暂夜间停车标志着西伯利亚旅程的开始。

youdao

The federation said the flow of residential approvals during the second quarter of 2011 "resumed its negative trend" in the UK as a whole, after a brief pick-up at the beginning of the year.

BBC: Slump in planning approvals for new Scottish homes

From the beginning this body's brief was to put human water consumption second to the rivers' environmental health.

ECONOMIST: Australia's water war

Was this the beginning of the next Great Depression or just a brief period of financial retrenchment?

FORBES: Can We Prevent Another Lehman?