Choosing the right path is far more important than your meaningless efforts!

Boy practices a new dance as his teacher watches proudly from behind.

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Mathematical abstraction: Stereoscopic reflections of lines and angles! Anti-theft infrared?

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When You Pick Up a Shell Casings by the Roadside

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Liebherr Excavator R9800

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I made an electric wheelchair for my grandma.

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The stress-relieving workplace at a speed bump installation site~

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The more skills you have, the better.

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Immersive viewing of handy tips for using hardware tools

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How Many Playing Cards Can Cut Through a Wooden Block?

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Men’s Speed Bump: The Mechanical Edition

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“Mechanical Mother”: Robots Take Over Human Reproduction

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Why Are Raised Road Markers Being Scraped Off? #Science #StressRelief #Construction #LearnSomethingN

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[Uncle Qiu Takes a Look] The video has been packaged—welcome to check it out!

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Calculus for beginners, Episode 1

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Mountains crumble, people drift away—only you can truly rely on yourself! Watch this high-scoring in

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The Last Heartbeat Before Life Ends

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Tinker Bell's math learning CD clip

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Gu Xun’er: While I was gone, Xiao Yan actually had a kid—time to crush them good!

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The Coolest Speed Bump Mechanism Ever!

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[Science] Amazing science magical toys to astonish you

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