classroom number plate 教室号指示牌
你的教室是几号?
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。
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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