蛇結 & 金剛結編法 - Snake Knot & Reinforced Snake Knot
影片中音樂：
Happy Commercial by MaxKoMusic | https://maxkomusic.com/
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Creative Commons Attribution-ShareAlike 3.0 Unported
https://creativecommons.org/licenses/by-sa/3.0/deed.en_US
Downfall by Alexander Nakarada | https://www.serpentsoundstudios.com
Music promoted by https://www.free-stock-music.com
Attribution 4.0 International (CC BY 4.0)
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