What's your classroom number?

你的教室是几号？

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A number of countries are already in the process of formulating their own standards for the control and reduction of classroom noise.

一些国家已经在着手制定本国关于控制和减少教室噪音的标准。

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Given the amount of time we spend in classrooms, and the number of shoes that pass through them every day, you may well understand me if I were to propose a no-shoes-in-the-classroom rule.

考虑到我们待在教室里的时间，以及每天在教室里走动的鞋子的数量，如果我要提出一条“教室内不穿鞋”的规则，你可能会非常理解我。

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The UIS survey shows that a child in Sub-Saharan Africa is likely to study in an overcrowded classroom that can number as many as 67 pupils in Chad, for example, compared to fewer than 30 in OECD countries.

UNESCO: MEDIA SERVICES

The game is based in a classroom where there are a number of activities going on that can be controlled by the student if he focuses on that area.

FORBES: Applying A Brain-Computer Interface For Children With ADHD

In 2009, when college administrators placed 40 crucifixes on classroom walls throughout the Boston campus, a number of faculty members were furious.

WSJ: Anne Hendershott: A Cardinal Boycotts Boston College