https://blog.wongcw.com/2023/03/18/%e5%be%ae%e8%bb%9f%e6%8a%8agpt-4%e5%a1%9e%e9%80%b2%e8%be%a6%e5%85%ac%e5%a5%97%e4%bb%b6%e8%aa%aa%e5%8f%a5%e8%a9%b1%e5%b0%b1%e8%83%bd%e5%81%9a%e8%a1%a8%e6%a0%bc%e3%80%81ppt-%e6%88%91%e6%85%8c%e4%ba%86/