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简介
When it's not windy, it can be easy to forget about air. Butair is everywhere-it fills your house, your car, and even yourempty milk glass. In fact, a regular room holds about 75 pounds ofit This Level 1 book, reillustrated with John O'Brien's clever,eye-catching illustrations, tells you how to discover the airthat's all around you.
目录
Air Is All Around You 自然科学启蒙1：你四周都是空气ISBN9780060594152
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