https://i.imgur.com/udXzMHa.jpeg
https://i.imgur.com/4P4GBwv.jpeg
https://x.com/feita602/status/1831278986250641457
https://i.imgur.com/uHKrvqs.jpeg
https://i.imgur.com/m0dgRqF.jpeg
https://i.imgur.com/aVibHC3.jpeg
https://i.imgur.com/jDEkXg3.jpeg
色色的書已經沒辦法讓小春興奮了
看來只能拿出高等工程數學了