变一变，认形状 (Shapes)
ebook ∣ 认知启蒙·第1辑 (Cognitive Enlightenment Part One) · 零起点认知阅读系列·第1辑 (Zero-Beginning Cognitive Reading Series No. 1)
By Zhen Guoguo
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这本书介绍了各种形状，圆形、正方形、梯形、三角形……每种图形都可以变换成其他图形：一个圆，压一压，变成椭圆形；一个圆，剪一剪，又变成了半圆……在有趣的故事中，宝宝可以看到各种形状的样子，了解到各种形状的内在联系。
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