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Air is all around you

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轉寄 列印
第1級人氣樹(0)
人氣指樹
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When it's not windy, it can be easy to forget about air. But air is everywhere-it fills your house, your car, and even your empty milk glass. In fact, a regular room holds about 75 pounds of it This Level 1 book, reillustrated with John O'Brien's clever, eye-catching illustrations, tells you how to discover the air that's all around you.

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