【實用教育app】How Fast?|最夯免費app-綠色工廠好玩App

This children book series in "HOW" include a total of four books. "How Fast", "How Deep", "How heavy" and "How tall". This book describe something about the world we are living. Let our children to understand something about how fast can something go. This book is designed for very young kids and are intend to educate our children in an easy understanding format.Colorful, Fun and Interesting for young kids 3+