B站的有很多视频的封面都是清华的校园打样的，就是给你一种课程很值的感觉
From X
Disclaimer: The above content reflects only the author's opinion and does not represent any stance of CoinNX, nor does it constitute any investment advice related to CoinNX.
Disclaimer: The above content reflects only the author's opinion and does not represent any stance of CoinNX, nor does it constitute any investment advice related to CoinNX.