The giant teeth of the cave are they fossils from ancient times# natural wonders

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Hello everyone! This is [Adventure China Shuai Shuai]]
I am the main team member of ”Adventure China”
Member of China Adventure Association
Chinese record holder for cave exploration depth (single cave -920 m)
The main record:
Bottom of China's deepest cave-gas pit hole (China's first)
The Deepest Cave in East China-The Gate of Hell (World First)
Proving Cave with Most Waterfalls in China-Dragon King Cave (World's First)
World's Highest Hole Ladder Hall Quest (Completed)
Kunlun Mountain Death Valley Crossing (Completed)
Thank you all for watching and supporting
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/ @tanxianzhongguoshuais...
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Outdoor# Adventure# Adventure Chinese Shuai Shuai