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SUPER SCIENCE

Secret of the best stone

作者:TEENS
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只有又扁又薄的石头才能打好水漂吗?

Do you love skipping stones (打水漂) across the water? Then, you should know that a flatter (更扁平的) and thinner stone is the best. But now scientists say a heavier, curvier (更弯曲的) one is also good.

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