I could put some thick paper boards outside the classroom in the corridor.
我们可以把一些厚纸板放到教室外的走廊里。
We could use pen and paper, white-boards, or simple software applications that allow us to model.
我们会使用笔和纸、白板,或者简单的软件应用,这些就让我们可以建模。
You can draw them on paper or on white boards.
可以将其画在纸上或白板上。
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