https://www.stheadline.com/food/3435470/%E7%B1%B3%E8%8A%9D%E8%93%AE%E6%AD%BB%E4%BA%A1%E4%B9%8B%E5%90%BB%E5%86%8D%E7%8F%BE%E8
省到水電：Bal b/f TW$27,010+TW$365=TW$27,375 Bal c/f
1º. 得不償失 2º. 不一定差
https://youtu.be/Y6cO_KHGoWM?si=lSrD1fs38SpzmXby
https://www.gotrip.hk/%e7%b6%b2%e7%b5%a1%e7%86%b1%e8%a9%b1/%e4%b8%ad%e5%ad%b8-%e7%b1%83%e7%90%83-%e9%83%adsir-%e5%b8%ab%
