Stencils - draw Outlines of a circle, square, rectangle and triangle on a piece of card and cut them out.
在一张卡纸上绘制出圆形、正方形、矩形和三角形的轮廓，并且将它们剪下来。
Maps of rectilinear states like Colorado and Utah are much easier to draw freehand than those of states with jagged Outlines.
徒手画像科罗拉多州和犹他州这样直线的州比画那些锯齿状外观的州容易多了。
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