Teacher Ni Haixia: Tianguan, why does one appear every 500 years?

The rise of Hijikata Toshizo, the vice-chief of the Shinsengumi | From a ronin to the head of the Ed

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Chopsticks have been passed down for more than 3,000 years and are a cultural treasure unique to Chi

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

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

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Why are the joints of steel cables so strong? #Science #Unzip #SteelCable #MachineryManufacturing #E

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

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How to lay a qualified asphalt road? #Science #Unzip #Paving #Knowledge

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[ Heaven Official's Blessing ] This is the fourth season!!

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Dad had been gone for several years, but his daughter received a gift from him on her wedding eve!

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

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When talking about her father, Liu Yifei's eyes welled up with tears. Although her parents are divor

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Because of his parents' long-term partiality, his son made an irreparable mistake!

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Huacheng is indeed the most fun-loving person certified by her mother~

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[Wednesday Animation] Do you dare to say that I have no expression?

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【Wednesday Animation】Let me tell you the correct way to charge!

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

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【Wednesday Animation】After eating the chicken in a bucket, you can restore a chicken fossil...

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! ! !

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Are foreign perfumes popular as soon as they are released? Traditional Chinese Incense Tao cannot be

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