设计维度数据仓库是一个复杂主题，这三篇文章只触及到它的皮毛。

Designing a dimensional data warehouse is a complex subject, and I have just touched the surface of it in these three articles.

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如果你再三考虑，你会发现最具体的论文主题往往会给你足够的视角去写出一份长篇幅的论文。

The most specific subject will always have enough aspects to furnish a long paper, if you think about it for a while.

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这些主题都分发给了PCST的所有与会代表，并把他们划分成焦点小组来贡献至多三条应对这些挑战的建议。

The topics were distributed to all PCST delegates, who were organised into focus groups to offer up to three recommendations to tackle any of the challenges.

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Let's see what happens here, just the motif, one, two, three, four, three four, one two, and then the theme.

让我们看看到底发生了什么,正是动机,一,二,三,四,一遍又一遍,然后是主题

耶鲁公开课 - 聆听音乐课程节选

In your RIS packet, I gave you the short poem "Two Songs from a Play." The first stanza of that interesting poem repeats themes from "The Magi" and "The Second Coming."

我给你们的资料里有首短诗,一出剧里的两支歌,这首有趣的诗的第一节重复了,东方三贤和二次圣临的主题“

耶鲁公开课 - 现代诗歌课程节选

What kind of themes? Let me talk a little bit about some of them. Let me just talk about, oh, about three or four of them, just so you can see what hopefully you'll be getting yourself into.

什么主题,这方面我说一说,我就说说,其中的三到四个,这样你就能明白,你要学什么

耶鲁公开课 - 1871年后的法国课程节选