This is far more serious than college students' gray industry chain worth 20 to 50 yuan.

"This is filming, bondage play~"

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Recommended for college students—it feels so empowering!

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The Traps and Solutions of Body Language

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

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

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Why do we add a layer of metal between the hammer head and the wooden handle? #Science #StressRelief

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Why is the blade of a gantry shear angled? #Science #StressRelief #HeavyMachinery #GantryShear #FunF

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Use inertia to remove parts. #PopularScience #Unzip #Inertia #SlidingHammer

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

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Introduction to Tequila

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Car Disassembly Video

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Introduction to Traditional Group Farming Culture in Africa

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How are the patterns painted on ceramics? #Science #StressRelief #Pottery #LearnSomethingNew

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There are no such things as "useless people" in this world—when properly utilized, everyone is a tre

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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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[Real Character 008] My son drank medicine and ended his life. I earn so much money that I can’t spe

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Why does steel slag when forging iron? #Science #Unzip #Forging #ExtremeComfort

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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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Are the videos we watched fake? Has wild sex education been fooling us all these years?

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Why doesn't it hurt when a needle is stuck in my finger?

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