《这就是地球！》系列科普启蒙图画书以简洁易懂的语言和精美的图画，向...
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Weather What are rainbows made of? How hot is the sun? When do hurricanes happen? Discover the answers to these questions and many more in this fascinating information book, with over 60 flaps to lift. There's also a quiz, a make your own water cycle experiment,...
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