on background

基本解释

While much of our conversation was on background or off the record, the hedge fund mogul did share with me his views on the industry and overall economy.
尽管我们的对话大多涉及幕后信息或未作记录，但这位基金大师确实也与我分享了许多他对于基金行业和整体经济的看法。
I know of more stuff leaked at one good dinner on background.
我知道在一个具有良好氛围的晚餐上有更多的人泄露消息。
The network that talked on background to key experts within the CDC, who believed it was a case of “damned if we do, damned if we don’t”, concluded the decision must be political.
另一个电视网与疾病控制和预防中心的主要专家谈话，这些专家认为目前的情况是“做也不行，不做也不行”，该电视网因此断言，有关决定显然是政治性的。

I knew some of it, but it has been interesting to do the background on it."
Let me give a little bit background on positive psychology: how we came about and how this class came about.
下面介绍一下积极心理学的背景：,它是如何诞生的，这门课是如何诞生的。
哈佛公开课 - 幸福课课程节选
So, let me begin by doing a little bit of background so you know what's going on here.
首先，我要做一下背景介绍,你们就能了解情况了。
麻省理工公开课 - 固态化学导论课程节选

And another Egyptian official said on background that Egypt will not oppose any withdrawal from occupied territory.
NPR: Israel's Olmert Has First Meeting with Egypt's Mubarak