Amazing Air Racers 在線電子書 圖書標籤:
發表於2024-11-24
Amazing Air Racers 在線電子書 pdf 下載 txt下載 epub 下載 mobi 下載 2024
What makes an air-racer go? Explore the science behind electricity, electromagnets, and propellers while building two fun racecars! Race yourself or your friend on the gravity-defying racetracks, tunnels, and homemade roller-coaster ramps described in the book. Or make an amazing air-racer course of your own!
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Amazing Air Racers 在線電子書 pdf 下載 txt下載 epub 下載 mobi 下載 2024