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作者:Robert E. Wells
插画:Robert E. Wells
出版社:Albert Whitman & Company
页数:17
繁体绘本
本书
介绍
Explore the functions of levers, wheels, and pulleys, and learn how to lift a lion, pull a panda, and deliver a basket of bananas to a baboon birthday party! This book will show some simple machines which come in many sizes and can be used for many purpose. Look around your world and you'll discover many more interesting examples!
本书
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