So we're only looking at a snapshot of that very first moment in time.

VOA: standard.2010.06.30

I'm going to read parts of them to you, and together I think they give you the sort of snapshot I want you to have of where literature stands, where reading stands, at the middle of the twentieth century.

我要读一部分给大家听，这些可以给大家,一个关于二十世纪中期，文学和阅读的立足点是什么的简单印象。

耶鲁公开课 - 1945年后的美国小说课程节选

So it's very interesting to see that little snapshot.

这张快照颇有趣味。

哈佛公开课 - 幸福课课程节选

"Clearly the pictures are disturbing," "but what I would also say to people is that as I think members of the committee have correctly pointed out, pictures are a snapshot,all right, and what we will not do and what I will not do is make assumptions prior to the completion of our investigation.

VOA: standard.2009.04.21

It's a more powerful method than something called a cross-sectional study, and I'll come back in a later lecture and talk about these in more detail, but a cross-sectional study means you're taking a snapshot of a population of people at one time.

这种方法比所谓的横断面研究更加有效,我将在以后的课中,再仔细讨论这个问题,但横断面研究是指,你一次记录下一群人的状况

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选