【老大南】官方頻道
如果喜歡我的視頻，歡迎訂閱我的頻道
https://www.youtube.com/channel/UCLeMx5W5xfMfd_ZFK3gMp4g
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大南实验室系列 Da Nan Laboratory Series：https://www.youtube.com/playlist?list=PLhht7wFILDWA11FM8Ozuq_QMc4yq2rkFJ
炼金术士系列 Alchemist Series：https://www.youtube.com/playlist?list=PLhht7wFILDWD7B771GhZ-2b_3kCpJrJnl
This account is the only official account of [laodanan] YouTube (others are malicious moves)
Hello everyone, I'm Da Nan!
If you like my video, please subscribe to my channel
https://www.youtube.com/channel/UCLeMx5W5xfMfd_ZFK3gMp4g