Before I met you, I always thought I was dull and dull

Look up at the stars and see how they shine for you

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Where do mosquitoes lay their eggs?

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What modifications can be made to an excavator? #PopularScience #Unzip #LargeMachinery #Excavator

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The Fertilization Process of Sperm and Egg

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They say diamonds are forever, but they can be burned and broken.

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This isn't magic, this is a science experiment.

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The power of science

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Car repair tips: temporary inflation, wire bundling to prevent punctures, DIY fenders, lubricating t

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The foreigner's giant plow tractor actually has a cab from the last century!

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I've learned a lot! I always thought sperm extraction involved watching porn movies for visual stimu

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Car Disassembly Video

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Why does steel need to be rolled repeatedly? #Science #Unzip #Rolling #Forging

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Introduction to Tequila

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I advise you to quit porn (enlarging testicles)

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Decompression video of the workers series!

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This six-flower expression is too cute! !

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A millennium-old mystery—anyone who understands can step forward and explain it.

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Even a single swipe with an eraser causes it to slip—don’t believe me? Try it yourself!

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Why do honey collectors only harvest a small portion of the hive when harvesting honey at high altit

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What kind of wisdom did the ancients have to design such a sophisticated mechanism?

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