The first six shapes are plane figures, and the last three shapes are solid figures. Today we'll learn about cuboids and cubes.
前面六个是平面图形，后面三个是立体图形。今天我们学习长方体、方体的认识。
The first six shapes are plane figures, and the last three shapes are solid figures. Today we'll learn about cuboids and cubes.
前面六个是平面图形，后面三个是立体图形。今天我们学习长方体、方体的认识。
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