But first, some background.

但是，首先来看一下背景。

youdao

First, some background.

首先，一些背景知识。

youdao

Some background on sort avoidance.

排序规避的一些背景知识。

youdao

I knew some of it, but it has been interesting to do the background on it."

VOA: special.2010.06.28

So, before I get in to that, let me just give you some background.

所以，在那之前，我介绍一下背景。

耶鲁公开课 - 1945年后的美国小说课程节选

So we had some common background and just really enjoyed comparing stories and upbringings

我们有共同的背景，我们经常交流我们的成长故事。

在马拉松认识的朋友 - SpeakingMax英语口语达人

Dahlia you live in Virginia, give us some background on this man - would you please?

NPR: Sex Offender Loses Bid to Stay Off Web ID List

Some background: The NFL has been looking under every rock for new and improved revenue streams.

FORBES: Proposal To Extend NFL Season Could Be Key To Avoiding Lockout

He's recorded some background chords for a song, but he's having trouble with the lyrics.

NPR: The 'Once' and Future Musical