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【Zhang Jiaqi】Muah! The sweet and adorable Olympic champion—can't wait to pinch her cheeks!!!!!
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[Sports]Diving moves from China athlete
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The power of science
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The ultimate beauty of physics
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Why can firecrackers restore the shape of oil barrels? This is because of the instantaneous pressure
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Gear machining: Why only a tiny bit of cutting is required? #Science #Unzip #Machinery #ExtremeComfo
Comparison of the size of tsunamis in history
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Why is steel colored after cutting? #Science #Unzip #Metalworking #CoolKnowledge
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Yemen is the first country to be destroyed by drugs, even children are not spared. How tragic is it?
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Farting underwater is like dropping a bomb to the water
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How strong is the force of regular CPR? I feel like my ribs are going to break in the next second.
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The Fertilization Process of Sperm and Egg
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Introduction to Traditional Group Farming Culture in Africa
The wisdom of the working people is to change the direction of force to move heavy objects. #Science
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Super cool mechanical series of speed bumps!
20 common mechanical transmission structures, I'm exhausted
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Fun|Moments of Social Death
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Super cool mechanical series of speed bumps! 7.18
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Convex lens experiment
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Introduction to Tequila
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